Initial commit: Android App für Music Separation

2025-09-05 14:42:59 +02:00 · 2025-09-05 14:42:59 +02:00 · ed32891202
commit ed32891202
73 changed files with 3331 additions and 0 deletions
--- a/.gitattributes
+++ b/.gitattributes
@ -0,0 +1 @@
+app/src/main/assets/*.tflite filter=lfs diff=lfs merge=lfs -text
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="21" />
+  </component>
+</project>
--- a/.idea/deploymentTargetSelector.xml
+++ b/.idea/deploymentTargetSelector.xml
@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetSelector">
+    <selectionStates>
+      <SelectionState runConfigName="app">
+        <option name="selectionMode" value="DROPDOWN" />
+        <DropdownSelection timestamp="2025-05-22T09:38:46.863315900Z">
+          <Target type="DEFAULT_BOOT">
+            <handle>
+              <DeviceId pluginId="LocalEmulator" identifier="path=C:\Users\Lukas\.android\avd\More_Ram_API_35.avd" />
+            </handle>
+          </Target>
+        </DropdownSelection>
+        <DialogSelection />
+      </SelectionState>
+    </selectionStates>
+  </component>
+</project>
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="CHOOSE_PER_TEST" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+        <option name="resolveExternalAnnotations" value="false" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
--- a/.idea/migrations.xml
+++ b/.idea/migrations.xml
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectMigrations">
+    <option name="MigrateToGradleLocalJavaHome">
+      <set>
+        <option value="$PROJECT_DIR$" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.intellij.execution.junit.AbstractAllInDirectoryConfigurationProducer" />
+        <option value="com.intellij.execution.junit.AllInPackageConfigurationProducer" />
+        <option value="com.intellij.execution.junit.PatternConfigurationProducer" />
+        <option value="com.intellij.execution.junit.TestInClassConfigurationProducer" />
+        <option value="com.intellij.execution.junit.UniqueIdConfigurationProducer" />
+        <option value="com.intellij.execution.junit.testDiscovery.JUnitTestDiscoveryConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinJUnitRunConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinPatternConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@ -0,0 +1,55 @@
+plugins {
+    alias(libs.plugins.android.application)
+}
+
+android {
+    namespace = "com.example.musicseparation"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.example.musicseparation"
+        minSdk = 26
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+    buildFeatures {
+        viewBinding = true
+    }
+}
+
+dependencies {
+
+    implementation(libs.appcompat)
+    implementation(libs.material)
+    implementation(libs.constraintlayout)
+    implementation(libs.navigation.fragment)
+    implementation(libs.navigation.ui)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.ext.junit)
+    androidTestImplementation(libs.espresso.core)
+
+    implementation("org.tensorflow:tensorflow-lite:2.15.0")
+    implementation("org.tensorflow:tensorflow-lite-select-tf-ops:2.15.0")
+
+
+    implementation("org.tensorflow:tensorflow-lite-support:0.4.0")
+    implementation("org.tensorflow:tensorflow-lite-metadata:0.4.0")
+    implementation("org.tensorflow:tensorflow-lite-gpu:2.9.0")
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/app/src/androidTest/java/com/example/musicseparation/ExampleInstrumentedTest.java
+++ b/app/src/androidTest/java/com/example/musicseparation/ExampleInstrumentedTest.java
@ -0,0 +1,26 @@
+package com.example.musicseparation;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.musicseparation", appContext.getPackageName());
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.MusicSeparation"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:configChanges="orientation|screenSize"
+            android:screenOrientation="portrait"
+            android:theme="@style/Theme.MusicSeparation">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".SeparationActivity"
+            android:configChanges="orientation|screenSize"
+            android:screenOrientation="portrait"/>
+    </application>
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="28" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"
+        android:maxSdkVersion="32" />
+    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
+
+</manifest>
--- a/app/src/main/assets/spleeter_2stems_optimized.tflite
+++ b/app/src/main/assets/spleeter_2stems_optimized.tflite
--- a/app/src/main/assets/spleeter_4stems_optimized.tflite
+++ b/app/src/main/assets/spleeter_4stems_optimized.tflite
--- a/app/src/main/assets/spleeter_5stems_optimized.tflite
+++ b/app/src/main/assets/spleeter_5stems_optimized.tflite
--- a/app/src/main/java/com/example/musicseparation/MainActivity.java
+++ b/app/src/main/java/com/example/musicseparation/MainActivity.java
@ -0,0 +1,199 @@
+package com.example.musicseparation;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.RadioGroup;
+import android.widget.SeekBar;
+import android.widget.TextView;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.activity.result.contract.ActivityResultContracts;
+import java.io.IOException;
+
+public class MainActivity extends AppCompatActivity {
+
+    private Button buttonLoadAudio;
+    private Button buttonStartSeparation;
+    //private EditText editTextAudioInfo;
+    private RadioGroup radioGroupStems;
+    private RadioGroup radioGroupChunks;
+
+
+    private WavFileLoader wavFileLoader;
+    private TextView textViewInfo;
+    private WaveformView waveformView;
+    private Uri selectedAudioUri;
+    private SeekBar seekBar;
+    private Handler handler = new Handler();
+    private WavFileLoader.WavData wavData;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        Log.d("MainActivity", "onCreate called");
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        // Initialisierung der UI-Elemente
+        buttonLoadAudio = findViewById(R.id.buttonLoadAudio);
+        buttonStartSeparation = findViewById(R.id.buttonStartSeparation);
+        //editTextAudioInfo = findViewById(R.id.editTextAudioInfo);
+        radioGroupStems = findViewById(R.id.radioGroupStems);
+        radioGroupChunks = findViewById(R.id.radioGroupChunks);
+
+        // Initialisierung des WavFileLoaders
+        wavFileLoader = new WavFileLoader();
+
+        // Initialisierung der WaveformView-Elemente
+        Button buttonPlay1 = findViewById(R.id.buttonPlay);
+        Button buttonStop1 = findViewById(R.id.buttonStop);
+        textViewInfo = findViewById(R.id.textViewInfo);
+        waveformView = findViewById(R.id.waveformOriginal);
+        seekBar = findViewById(R.id.seekBar);
+        setupSeekBar(seekBar, waveformView);
+
+        // Registrierung des ActivityResultLauncher
+        ActivityResultLauncher<Intent> filePickerLauncher = registerForActivityResult(
+                new ActivityResultContracts.StartActivityForResult(),
+                result -> {
+                    Log.d("MainActivity", "ActivityResultLauncher called");
+                    if (result.getResultCode() == RESULT_OK && result.getData() != null) {
+                        Uri uri = result.getData().getData();
+
+                        try {
+                            getContentResolver().takePersistableUriPermission(uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+                            Log.d("MainActivity", "Uri: " + uri);
+                            wavData = wavFileLoader.loadWavFile(this, uri);
+                            //float[] normalizedSamples = normalizeSamples(wavData.audioData);
+                            float[] normalizedSamples = wavData.audioData;
+
+                            selectedAudioUri = uri;
+                            waveformView.setAudioUri(uri);
+                            waveformView.setSamples(normalizedSamples);
+                            textViewInfo.setText("Länge: " + wavData.audioData.length + " Samples\nSamplerate: " + wavData.sampleRate + " Hz");
+
+
+                        } catch (IOException e) {
+                            textViewInfo.setText("Fehler beim Laden: " + e.getMessage());
+                        }
+                    }
+                });
+
+        buttonLoadAudio.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Log.d("MainActivity", "buttonLoad1 clicked");
+                Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+                intent.setType("audio/*");
+                intent.addCategory(Intent.CATEGORY_OPENABLE);
+                filePickerLauncher.launch(intent);
+            }
+        });
+
+        buttonPlay1.setOnClickListener(v -> {
+            Log.d("MainActivity", "buttonPlay1 clicked");
+            if (selectedAudioUri != null) {
+                waveformView.playAudio(this);
+            }
+        });
+
+        buttonStop1.setOnClickListener(v -> waveformView.stopAudio());
+
+
+        buttonStartSeparation.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Log.d("MainActivity", "Separation Button clicked");
+                Intent intent = new Intent(MainActivity.this, SeparationActivity.class);
+
+                // WavData und Stem-Option übergeben
+                //intent.putExtra("audioData", wavData.audioData);
+                //intent.putExtra("sampleRate", wavData.sampleRate);
+                //intent.putExtra("audioUri", selectedAudioUri);
+                WavDataHolder.setWavData(wavData);
+                WavDataHolder.setAudioUri(selectedAudioUri);
+
+                if (radioGroupStems.getCheckedRadioButtonId() == R.id.radioButton2Stems) {
+                    intent.putExtra("stemOption", 2);
+                } else if (radioGroupStems.getCheckedRadioButtonId() == R.id.radioButton4Stems) {
+                    intent.putExtra("stemOption", 4);
+                } else if (radioGroupStems.getCheckedRadioButtonId() == R.id.radioButton5Stems) {
+                    intent.putExtra("stemOption", 5);
+                }
+
+                if(radioGroupChunks.getCheckedRadioButtonId() == R.id.radioButton1){
+                    intent.putExtra("chunkSize", 220500);
+                }else if(radioGroupChunks.getCheckedRadioButtonId() == R.id.radioButton2){
+                    intent.putExtra("chunkSize", 441000);
+                }else if(radioGroupChunks.getCheckedRadioButtonId() == R.id.radioButton3){
+                    intent.putExtra("chunkSize", 882000);
+                }else if(radioGroupChunks.getCheckedRadioButtonId() == R.id.radioButton4){
+                    intent.putExtra("chunkSize", 1764000);
+                }else if(radioGroupChunks.getCheckedRadioButtonId() == R.id.radioButton5){
+                    intent.putExtra("chunkSize", 3528000);
+                }
+
+                // selectedStemOption = (radioGroupStems.getCheckedRadioButtonId() == R.id.radioButton2Stems) ? 2 : 4;
+                //intent.putExtra("stemOption", selectedStemOption);
+
+                startActivity(intent);
+            }
+        });
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        waveformView.stopAudio();
+    }
+
+    private void setupSeekBar(SeekBar seekBar, WaveformView waveformView) {
+        seekBar.setMax(1000);
+        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            boolean touching = false;
+
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                if (fromUser && waveformView != null && waveformView.isPlaying()) {
+                    int duration = waveformView.getDuration();
+                    int position = (int) (progress / 1000f * duration);
+                    waveformView.seekTo(position);
+                }
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+                touching = true;
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+                touching = false;
+            }
+        });
+
+        Runnable updater = new Runnable() {
+            @Override
+            public void run() {
+                if (waveformView != null && waveformView.isPlaying()) {
+                    int duration = waveformView.getDuration();
+                    int current = waveformView.getCurrentPosition();
+                    int progress = (int) (current / (float) duration * 1000);
+
+                    seekBar.setProgress(progress);
+                    waveformView.updatePlaybackPosition(current);
+                }
+                handler.postDelayed(this, 200);
+            }
+        };
+        handler.post(updater);
+    }
+}
--- a/app/src/main/java/com/example/musicseparation/SeparationActivity.java
+++ b/app/src/main/java/com/example/musicseparation/SeparationActivity.java
@ -0,0 +1,805 @@
+package com.example.musicseparation;
+
+import android.Manifest;
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.Environment;
+import android.os.Handler;
+import android.provider.MediaStore;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.SeekBar;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+import com.example.musicseparation.WaveformView;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.ArrayList;
+import java.util.List;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class SeparationActivity extends AppCompatActivity {
+
+    private float[] audioData;
+    private int sampleRate;
+    private int stemOption;
+    private int chunkoption;
+
+    private Uri audioUri;
+
+    private TextView textViewProgress;
+
+    private List<WaveformView> waveformViews = new ArrayList<>();
+    private List<Button> playButtons = new ArrayList<>();
+    private List<Button> stopButtons = new ArrayList<>();
+    private List<TextView> infoTexts = new ArrayList<>();
+    private List<SeekBar> seekBars = new ArrayList<>();
+
+    private Handler handler = new Handler();
+
+    private String timestamp;
+
+    WavFileLoader wavFileLoader;
+    WavFileLoader.WavData wavData;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        Log.d("SeparationActivity", "onCreate called");
+        super.onCreate(savedInstanceState);
+        //System.out.println("SeparationActivity onCreate() called");
+
+
+        stemOption = getIntent().getIntExtra("stemOption", 2);
+        if (stemOption == 2) {
+            Log.d("SeparationActivity", "onCreate called with stemOption 2");
+            setContentView(R.layout.activity_separation_2stems);
+        } else if (stemOption == 4) {
+            Log.d("SeparationActivity", "onCreate called with stemOption 4");
+            setContentView(R.layout.activity_separation_4stems);
+        } else if (stemOption == 5) {
+            Log.d("SeparationActivity", "onCreate called with stemOption 5");
+            setContentView(R.layout.activity_separation_5stems);
+        }
+
+        // Get Data from MainActivity
+        chunkoption = getIntent().getIntExtra("chunkSize", 882000);
+
+        WavFileLoader.WavData wavData = WavDataHolder.getWavData();
+        if (wavData != null) {
+            audioData = wavData.audioData;
+            sampleRate = wavData.sampleRate;
+            audioUri = WavDataHolder.getAudioUri();
+            // Weiterarbeiten...
+        } else {
+            // Fehlerbehandlung (z.B. Fehlermeldung oder Activity schließen)
+        }
+
+
+        //audioData = getIntent().getFloatArrayExtra("audioData");
+        //sampleRate = getIntent().getIntExtra("sampleRate", 44100);
+
+        // Initialisierung der UI-Elemente
+        textViewProgress = findViewById(R.id.textViewProgress);
+
+        // Jetzt dynamisch alle Sets holen
+        setupWaveformElements();
+        setupButtonListeners();
+
+
+        //TextView infoText = findViewById(R.id.textViewInfo0);
+        //infoTexts.get(0).setText();
+        //WaveformView waveformView = findViewById(R.id.waveformView0);
+        //waveformView.setAudioUri(audioUri);
+        //waveformView.setSamples(audioData);
+        waveformViews.get(0).setSamples(audioData);
+        waveformViews.get(0).setAudioUri(audioUri);
+
+        infoTexts.get(0).setText("Pfad: " + audioUri.toString() + "\nLänge: " + wavData.audioData.length + " Samples\nSamplerate: " + wavData.sampleRate + " Hz");
+        //infoText.setText("Pfad: " + audioUri.toString() + "\nLänge: " + wavData.audioData.length + " Samples\nSamplerate: " + wavData.sampleRate + " Hz");
+        setupSeekBar(seekBars.get(0), waveformViews.get(0));
+
+
+        // Aufrufen der AsyncTask
+        if (stemOption == 2) {
+            new SeparationTask2Stems().execute();
+        } else if (stemOption == 4) {
+            new SeparationTask4Stems().execute();
+        } else if (stemOption == 5) {
+            new SeparationTask5Stems().execute();
+        }
+
+
+    }
+
+    @Override
+    protected void onPause() {
+        Log.d("SeparationActivity", "onPause called");
+        super.onPause();
+        stopAllAudioPlayback();
+    }
+
+    private void stopAllAudioPlayback() {
+        for (WaveformView view : waveformViews) {
+            if (view != null) {
+                view.stopAudio();
+            }
+        }
+    }
+
+
+
+    private void setupWaveformElements() {
+        Log.d("SeparationActivity", "setupWaveformElements() called");
+        //System.out.println("SeparationActivity.setupWaveformElements() called");
+        int numberOfElements = 1 + stemOption; // 1 Original + X Stems
+
+        for (int i = 0; i < numberOfElements; i++) {
+            // Waveform-Elemente suchen
+            int playButtonId = getResources().getIdentifier("buttonPlay" + i, "id", getPackageName());
+            int stopButtonId = getResources().getIdentifier("buttonStop" + i, "id", getPackageName());
+            int textViewInfoId = getResources().getIdentifier("textViewInfo" + i, "id", getPackageName());
+            int waveformViewId = getResources().getIdentifier("waveformView" + i, "id", getPackageName());
+            int seekBarId = getResources().getIdentifier("seekBar" + i, "id", getPackageName());
+
+            // Falls existieren
+            Button playButton = findViewById(playButtonId);
+            Button stopButton = findViewById(stopButtonId);
+            TextView infoText = findViewById(textViewInfoId);
+            WaveformView waveformView = findViewById(waveformViewId);
+            SeekBar seekBar = findViewById(seekBarId);
+
+            if (playButton != null && stopButton != null && infoText != null && waveformView != null && seekBar != null) {
+                playButtons.add(playButton);
+                stopButtons.add(stopButton);
+                infoTexts.add(infoText);
+                waveformViews.add(waveformView);
+                seekBars.add(seekBar);
+            }
+
+        }
+    }
+
+    private void setupButtonListeners() {
+        Log.d("SeparationActivity", "setupButtonListeners() called");
+        //System.out.println("SeparationActivity.setupButtonListeners() called");
+        for (int i = 0; i < playButtons.size(); i++) {
+            final int index = i;
+            playButtons.get(i).setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    // Beispiel-Logik
+                    System.out.println("Play Button " + index + " gedrückt");
+                    waveformViews.get(index).playAudio(SeparationActivity.this);
+                }
+            });
+
+            stopButtons.get(i).setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    // Beispiel-Logik
+                    System.out.println("Stop Button " + index + " gedrückt");
+                    waveformViews.get(index).stopAudio();
+                }
+            });
+        }
+    }
+
+    private void setupSeekBar(SeekBar seekBar, WaveformView waveformView) {
+        Log.d("SeparationActivity", "setupSeekBar() called");
+        seekBar.setMax(1000);
+        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            boolean touching = false;
+
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                if (fromUser && waveformView != null && waveformView.isPlaying()) {
+                    int duration = waveformView.getDuration();
+                    int position = (int) (progress / 1000f * duration);
+                    waveformView.seekTo(position);
+                }
+            }
+
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {
+                touching = true;
+            }
+
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {
+                touching = false;
+            }
+        });
+
+        Runnable updater = new Runnable() {
+            @Override
+            public void run() {
+                if (waveformView != null && waveformView.isPlaying()) {
+                    int duration = waveformView.getDuration();
+                    int current = waveformView.getCurrentPosition();
+                    int progress = (int) (current / (float) duration * 1000);
+
+                    seekBar.setProgress(progress);
+                    waveformView.updatePlaybackPosition(current);
+                }
+                handler.postDelayed(this, 200);
+            }
+        };
+        handler.post(updater);
+    }
+
+
+
+    private class SeparationTask extends AsyncTask<Void, Integer, Void> {
+        @Override
+        protected void onPreExecute() {
+            //progressBar.setVisibility(View.VISIBLE);
+            textViewProgress.setVisibility(View.VISIBLE);
+            //progressBar.setProgress(0);
+            textViewProgress.setText("Separation startet...");
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            try {
+                Log.d("Debug", "doInBackground called!");
+                TFLiteModelProcessor modelProcessor = new TFLiteModelProcessor(SeparationActivity.this, "spleeter_2stems_optimized.tflite");
+
+                int chunkSize = 882000; // Falls nötig anpassen
+                int overlapSize = chunkSize / 2;  // 50% Overlap
+                int stepSize = chunkSize - overlapSize; // Schrittweite für Overlap-Add
+                int numChunks = (int) Math.ceil((double) audioData.length / stepSize);
+
+                Log.d("Debug", "numChunks: " + numChunks + " von " + (audioData.length / stepSize) + ", Audiolänge: " + audioData.length);
+
+                File appDownloadDir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "SeparatedAudio");
+                if (!appDownloadDir.exists()) {
+                    appDownloadDir.mkdirs();
+                }
+
+                //File vocalsFile = new File(appDownloadDir, "vocals.wav");
+                File vocalsFile = new File(appDownloadDir, "vocals.wav");
+                File instrumentalsFile = new File(appDownloadDir, "instrumentals.wav");
+
+                FileOutputStream vocalsStream = new FileOutputStream(vocalsFile);
+                FileOutputStream instrumentalsStream = new FileOutputStream(instrumentalsFile);
+
+                //File vocalsFile = new File(getExternalFilesDir(null), "vocals.wav");
+                //File instrumentalsFile = new File(getExternalFilesDir(null), "instrumentals.wav");
+
+                //FileOutputStream vocalsStream = new FileOutputStream(vocalsFile);
+                //FileOutputStream instrumentalsStream = new FileOutputStream(instrumentalsFile);
+
+                writeEmptyWavHeader(vocalsStream);
+                writeEmptyWavHeader(instrumentalsStream);
+
+                Log.d("Debug", "WAV-Dateien geöffnet");
+
+                // **Letzte gespeicherte Overlap-Daten für die Glättung**
+                float[] prevVocalsOverlap = new float[overlapSize];
+                float[] prevInstrumentalsOverlap = new float[overlapSize];
+
+                for (int chunkIndex = 0; chunkIndex < numChunks; chunkIndex++) {
+                    int start = chunkIndex * stepSize;
+                    int end = Math.min(start + chunkSize, audioData.length);
+
+                    Log.d("Debug", "chunkIndex: " + chunkIndex + " von " + numChunks);
+                    Log.d("Debug", "start: " + start + ", end: " + end + ", audiolänge: " + audioData.length);
+
+                    // **Chunk mit Overlap vorbereiten**
+                    float[][] inputAudio = new float[2][chunkSize];
+                    for (int i = start; i < end; i++) {
+                        inputAudio[0][i - start] = audioData[i]; // Linker Kanal
+                        inputAudio[1][i - start] = audioData[i]; // Rechter Kanal
+                    }
+
+                    for (int i = end - start; i < chunkSize; i++) {
+                        inputAudio[0][i] = 0f;
+                        inputAudio[1][i] = 0f;
+                    }
+
+                    Log.d("AudioSeparation", "inputAudio Length: " + inputAudio[0].length);
+
+                    // **Model-Prozessierung**
+                    float[][] separatedAudio = modelProcessor.processAudio(inputAudio);
+                    float[] chunkVocals = separatedAudio[0];
+                    float[] chunkInstrumentals = separatedAudio[1];
+
+                    Log.d("AudioSeparation", "ChunkVocals Length: " + chunkVocals.length);
+                    Log.d("AudioSeparation", "ChunkInstrumentals Length: " + chunkInstrumentals.length);
+
+                    // **Overlap-Add für Übergänge**
+                    applyOverlapAdd(prevVocalsOverlap, chunkVocals, overlapSize);
+                    applyOverlapAdd(prevInstrumentalsOverlap, chunkInstrumentals, overlapSize);
+
+                    // **Direktes Schreiben in WAV**
+                    // Statt: writeAudioToStream(vocalsStream, chunkVocals, overlapSize);
+                    int writeFrom = (chunkIndex == 0) ? 0 : overlapSize;
+                    int validLength = (chunkIndex == numChunks - 1) ? (end - start) : chunkVocals.length;
+
+                    writeAudioToStream(vocalsStream, chunkVocals, writeFrom, validLength);
+                    writeAudioToStream(instrumentalsStream, chunkInstrumentals, writeFrom, validLength);
+                    //writeAudioToStream(vocalsStream, chunkVocals, writeFrom);
+                    //writeAudioToStream(instrumentalsStream, chunkInstrumentals, writeFrom);
+
+                    //writeAudioToStream(vocalsStream, chunkVocals, overlapSize);
+                    //writeAudioToStream(instrumentalsStream, chunkInstrumentals, overlapSize);
+
+                    publishProgress((int) ((chunkIndex / (float) numChunks) * 100), chunkIndex, numChunks);
+                }
+
+                updateWavHeader(vocalsFile);
+                updateWavHeader(instrumentalsFile);
+
+                vocalsStream.close();
+                instrumentalsStream.close();
+                modelProcessor.close();
+
+                loadAndDisplayStems(new String[]{"vocals", "instrumentals"});
+
+
+
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return null;
+        }
+
+
+        @Override
+        protected void onProgressUpdate(Integer... values) {
+            //progressBar.setProgress(values[0]);
+            textViewProgress.setText("Verarbeite Chunk " + values[1] + " von " + values[2]);
+        }
+
+        @Override
+        protected void onPostExecute(Void aVoid) {
+            //progressBar.setVisibility(View.GONE);
+            textViewProgress.setText("Separation abgeschlossen!");
+        }
+    }
+
+    private class SeparationTask2Stems extends AsyncTask<Void, Integer, Void> {
+        @Override
+        protected void onPreExecute() {
+            textViewProgress.setVisibility(View.VISIBLE);
+            textViewProgress.setText("2-Stem Separation startet...");
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            try {
+                Log.d("SeparationActivity", "SeparationTask2Stems doInBackground called!");
+                TFLiteModelProcessor2Stems modelProcessor = new TFLiteModelProcessor2Stems(SeparationActivity.this, "spleeter_2stems_optimized.tflite");
+
+                int chunkSize = chunkoption;
+                int overlapSize = chunkSize / 2;
+                int stepSize = chunkSize - overlapSize;
+                int numChunks = (int) Math.ceil((double) audioData.length / stepSize);
+
+                timestamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
+                File dir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "2stems_" + timestamp);
+                dir.mkdirs();
+
+                //File dir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "SeparatedAudio_2stems");
+                //dir.mkdirs();
+
+                File[] stemFiles = new File[] {
+                        new File(dir, "vocals.wav"),
+                        new File(dir, "instrumentals.wav")
+                };
+
+                FileOutputStream[] outputStreams = new FileOutputStream[2];
+                for (int i = 0; i < 2; i++) {
+                    outputStreams[i] = new FileOutputStream(stemFiles[i]);
+                    writeEmptyWavHeader(outputStreams[i]);
+                }
+
+                float[][] prevOverlap = new float[2][overlapSize];
+
+                for (int chunkIndex = 0; chunkIndex < numChunks; chunkIndex++) {
+                    int start = chunkIndex * stepSize;
+                    int end = Math.min(start + chunkSize, audioData.length);
+
+                    float[][] input = new float[2][chunkSize];
+                    for (int i = start; i < end; i++) {
+                        input[0][i - start] = audioData[i];
+                        input[1][i - start] = audioData[i];
+                    }
+
+                    Log.d("SeparationActivity", "modelProcessor about to start");
+                    float[][] separated = modelProcessor.processAudio(input);
+                    /*
+                    int writeFrom = (chunkIndex == 0) ? 0 : overlapSize;
+                    int validLength = (chunkIndex == numChunks - 1) ? (end - start) : separated[0].length;
+
+                    for (int i = 0; i < 2; i++) {
+                        applyOverlapAdd(prevOverlap[i], separated[i], overlapSize);
+                        writeAudioToStream(outputStreams[i], separated[i], writeFrom, validLength);
+                    }
+                    */
+                    for (int i = 0; i < 2; i++) {
+                        applyOverlapAdd(prevOverlap[i], separated[i], overlapSize);
+                        int writeFrom = (chunkIndex == 0) ? 0 : overlapSize;
+                        int validLength = (chunkIndex == numChunks - 1) ? (end - start) : separated[i].length;
+                        writeAudioToStream(outputStreams[i], separated[i], writeFrom, validLength);
+                    }
+
+                    publishProgress((int) ((chunkIndex / (float) numChunks) * 100), chunkIndex, numChunks);
+                }
+
+                for (int i = 0; i < 2; i++) {
+                    outputStreams[i].close();
+                    updateWavHeader(stemFiles[i]);
+                }
+
+                modelProcessor.close();
+
+                //loadAndDisplayStems(new String[]{"vocals", "instrumentals"});
+
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return null;
+        }
+
+        @Override
+        protected void onProgressUpdate(Integer... values) {
+            textViewProgress.setText("Chunk " + values[1] + " von " + values[2]);
+        }
+
+        @Override
+        protected void onPostExecute(Void aVoid) {
+            textViewProgress.setText("2-Stem Separation abgeschlossen!");
+            loadAndDisplayStems(new String[]{"vocals", "instrumentals"});
+        }
+    }
+
+    private class SeparationTask4Stems extends AsyncTask<Void, Integer, Void> {
+        @Override
+        protected void onPreExecute() {
+            textViewProgress.setVisibility(View.VISIBLE);
+            textViewProgress.setText("4-Stem Separation startet...");
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            try {
+                Log.d("SeparationActivity", "SeparationTask4Stems doInBackground called!");
+                TFLiteModelProcessor4Stems modelProcessor = new TFLiteModelProcessor4Stems(SeparationActivity.this, "spleeter_4stems_optimized.tflite");
+
+                int chunkSize = chunkoption;
+                int overlapSize = chunkSize / 2;
+                int stepSize = chunkSize - overlapSize;
+                int numChunks = (int) Math.ceil((double) audioData.length / stepSize);
+
+                timestamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
+                File dir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "4stems_" + timestamp);
+                dir.mkdirs();
+
+                //File dir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "SeparatedAudio_4stems");
+                //dir.mkdirs();
+
+                File[] stemFiles = new File[] {
+                        new File(dir, "vocals.wav"),
+                        new File(dir, "drums.wav"),
+                        new File(dir, "bass.wav"),
+                        new File(dir, "other.wav")
+                };
+
+                FileOutputStream[] outputStreams = new FileOutputStream[4];
+                for (int i = 0; i < 4; i++) {
+                    outputStreams[i] = new FileOutputStream(stemFiles[i]);
+                    writeEmptyWavHeader(outputStreams[i]);
+                }
+
+                float[][] prevOverlap = new float[4][overlapSize];
+
+                for (int chunkIndex = 0; chunkIndex < numChunks; chunkIndex++) {
+                    int start = chunkIndex * stepSize;
+                    int end = Math.min(start + chunkSize, audioData.length);
+
+                    float[][] input = new float[2][chunkSize];
+                    for (int i = start; i < end; i++) {
+                        input[0][i - start] = audioData[i];
+                        input[1][i - start] = audioData[i];
+                    }
+
+                    Log.d("SeparationActivity", "modelProcessor about to start");
+                    float[][] separated = modelProcessor.processAudio(input);
+
+                    for (int i = 0; i < 4; i++) {
+                        applyOverlapAdd(prevOverlap[i], separated[i], overlapSize);
+                        int writeFrom = (chunkIndex == 0) ? 0 : overlapSize;
+                        int validLength = (chunkIndex == numChunks - 1) ? (end - start) : separated[i].length;
+                        writeAudioToStream(outputStreams[i], separated[i], writeFrom, validLength);
+                        //writeAudioToStream(outputStreams[i], separated[i], writeFrom);
+
+                        //writeAudioToStream(outputStreams[i], separated[i], overlapSize);
+                    }
+
+                    publishProgress((int) ((chunkIndex / (float) numChunks) * 100), chunkIndex, numChunks);
+                }
+
+                for (int i = 0; i < 4; i++) {
+                    outputStreams[i].close();
+                    updateWavHeader(stemFiles[i]);
+                }
+
+                modelProcessor.close();
+
+                //loadAndDisplayStems(new String[]{"vocals", "drums", "bass", "other"});
+
+
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return null;
+        }
+
+        @Override
+        protected void onProgressUpdate(Integer... values) {
+            textViewProgress.setText("Chunk " + values[1] + " von " + values[2]);
+        }
+
+        @Override
+        protected void onPostExecute(Void aVoid) {
+            textViewProgress.setText("4-Stem Separation abgeschlossen!");
+            loadAndDisplayStems(new String[]{"vocals", "drums", "bass", "other"});
+        }
+    }
+
+    private class SeparationTask5Stems extends AsyncTask<Void, Integer, Void> {
+        @Override
+        protected void onPreExecute() {
+            textViewProgress.setVisibility(View.VISIBLE);
+            textViewProgress.setText("5-Stem Separation startet...");
+        }
+
+        @Override
+        protected Void doInBackground(Void... voids) {
+            try {
+                Log.d("SeparationActivity", "SeparationTask5Stems doInBackground called!");
+                TFLiteModelProcessor5Stems modelProcessor = new TFLiteModelProcessor5Stems(SeparationActivity.this, "spleeter_5stems_optimized.tflite");
+
+                int chunkSize = chunkoption; //882000
+                int overlapSize = chunkSize / 2;
+                int stepSize = chunkSize - overlapSize;
+                int numChunks = (int) Math.ceil((double) audioData.length / stepSize);
+
+                timestamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
+                File dir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "5stems_" + timestamp);
+                dir.mkdirs();
+
+                //File dir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "SeparatedAudio_5stems");
+                //dir.mkdirs();
+
+                File[] stemFiles = new File[] {
+                        new File(dir, "vocals.wav"),
+                        new File(dir, "piano.wav"),
+                        new File(dir, "drums.wav"),
+                        new File(dir, "bass.wav"),
+                        new File(dir, "other.wav")
+                };
+
+                FileOutputStream[] outputStreams = new FileOutputStream[5];
+                for (int i = 0; i < 5; i++) {
+                    outputStreams[i] = new FileOutputStream(stemFiles[i]);
+                    writeEmptyWavHeader(outputStreams[i]);
+                }
+
+                float[][] prevOverlap = new float[5][overlapSize];
+
+                for (int chunkIndex = 0; chunkIndex < numChunks; chunkIndex++) {
+                    int start = chunkIndex * stepSize;
+                    int end = Math.min(start + chunkSize, audioData.length);
+
+                    float[][] input = new float[2][chunkSize];
+                    for (int i = start; i < end; i++) {
+                        input[0][i - start] = audioData[i];
+                        input[1][i - start] = audioData[i];
+                    }
+
+                    Log.d("SeparationActivity", "modelProcessor about to start");
+                    float[][] separated = modelProcessor.processAudio(input);
+
+                    for (int i = 0; i < 5; i++) {
+                        applyOverlapAdd(prevOverlap[i], separated[i], overlapSize);
+
+                        int writeFrom = (chunkIndex == 0) ? 0 : overlapSize;
+                        int validLength = (chunkIndex == numChunks - 1) ? (end - start) : separated[i].length;
+                        writeAudioToStream(outputStreams[i], separated[i], writeFrom, validLength);
+                        //writeAudioToStream(outputStreams[i], separated[i], writeFrom);
+
+                        //writeAudioToStream(outputStreams[i], separated[i], overlapSize);
+                    }
+
+                    publishProgress((int) ((chunkIndex / (float) numChunks) * 100), chunkIndex, numChunks);
+                }
+
+                for (int i = 0; i < 5; i++) {
+                    outputStreams[i].close();
+                    updateWavHeader(stemFiles[i]);
+                }
+
+                modelProcessor.close();
+
+                //loadAndDisplayStems(new String[]{"vocals", "piano", "drums", "bass", "other"});
+
+
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return null;
+        }
+
+        @Override
+        protected void onProgressUpdate(Integer... values) {
+            textViewProgress.setText("Chunk " + values[1] + " von " + values[2]);
+        }
+
+        @Override
+        protected void onPostExecute(Void aVoid) {
+            textViewProgress.setText("5-Stem Separation abgeschlossen!");
+            loadAndDisplayStems(new String[]{"vocals", "piano", "drums", "bass", "other"});
+        }
+    }
+
+
+
+    private void loadAndDisplayStems(String[] stemNames) {
+        Log.d("SeparationActivity", "loadAndDisplayStems called!");
+        File baseDir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "SeparatedAudio");
+        if (stemOption == 2) {
+            baseDir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "2stems_"  + timestamp);
+        } else if (stemOption == 4) {
+            baseDir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "4stems_"  + timestamp);
+        } else if (stemOption == 5) {
+            baseDir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "5stems_"  + timestamp);
+        }
+        //File baseDir = new File(getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "SeparatedAudio");
+        WavFileLoader loader = new WavFileLoader();
+
+        for (int i = 0; i < stemNames.length; i++) {
+            try {
+                File file = new File(baseDir, stemNames[i] + ".wav");
+                Uri uri = Uri.fromFile(file);
+                WavFileLoader.WavData stemData = loader.loadWavFile(this, uri);
+
+                waveformViews.get(i + 1).setSamples(stemData.audioData);
+                waveformViews.get(i + 1).setAudioUri(uri);
+                setupSeekBar(seekBars.get(i + 1), waveformViews.get(i + 1));
+                Log.d("SeparationActivity", "loadAndDisplayStems: stemName: " + stemNames[i] + ", uri: " + uri);
+
+                infoTexts.get(i + 1).setText(
+                        stemNames[i]
+                );
+
+            } catch (IOException e) {
+                e.printStackTrace();
+                infoTexts.get(i + 1).setText("Fehler beim Laden von: " + stemNames[i]);
+            }
+        }
+    }
+
+
+
+    // **Overlap-Add direkt auf den nächsten Chunk anwenden**
+    private void applyOverlapAdd(float[] prevOverlap, float[] currentChunk, int overlapSize) {
+        Log.d("AudioSeparation", "applyOverlapAdd called!");
+        for (int i = 0; i < overlapSize; i++) {
+            float hannWeight = getHannWindowValue(i, overlapSize);
+            float linearWeight = (float) i / overlapSize;
+
+            // **Berechnung der Gesamtgewichtung**
+            float combinedWeight = 0.5f * (hannWeight + linearWeight);
+
+            // **Overlap korrekt verrechnen**
+            currentChunk[i] = (prevOverlap[i] * (1 - combinedWeight) + currentChunk[i] * combinedWeight);
+        }
+
+        // **Speichere den neuen Overlap für den nächsten Chunk**
+        System.arraycopy(currentChunk, currentChunk.length - overlapSize, prevOverlap, 0, overlapSize);
+    }
+
+    // **Hanning-Fenster für sanfte Übergänge**
+    private float getHannWindowValue(int index, int totalSize) {
+        return 0.5f * (1 - (float) Math.cos(2 * Math.PI * (index + 0.5) / (totalSize - 1)));
+    }
+
+    // **Audio mit Overlap direkt in WAV-Datei schreiben**
+    /*
+    private void writeAudioToStream(FileOutputStream stream, float[] audioData, int overlapSize) throws IOException {
+        ByteBuffer buffer = ByteBuffer.allocate((audioData.length - overlapSize) * 2).order(ByteOrder.LITTLE_ENDIAN);
+
+        for (int i = overlapSize; i < audioData.length; i++) { // ⚠️ Jetzt ohne doppelten Overlap!
+            short pcmSample = (short) Math.max(Math.min(audioData[i] * 32767, Short.MAX_VALUE), Short.MIN_VALUE);
+            buffer.putShort(pcmSample);
+        }
+
+        stream.write(buffer.array());
+    }
+    */
+    /*
+    private void writeAudioToStream(FileOutputStream stream, float[] audioData, int startIndex) throws IOException {
+        ByteBuffer buffer = ByteBuffer.allocate((audioData.length - startIndex) * 2).order(ByteOrder.LITTLE_ENDIAN);
+        for (int i = startIndex; i < audioData.length; i++) {
+            short pcmSample = (short) Math.max(Math.min(audioData[i] * 32767, Short.MAX_VALUE), Short.MIN_VALUE);
+            buffer.putShort(pcmSample);
+        }
+        stream.write(buffer.array());
+    }
+    */
+
+    // Create WaveFiles
+    private void writeAudioToStream(FileOutputStream stream, float[] audioData, int startIndex, int validLength) throws IOException {
+        Log.d("AudioSeparation", "writeAudioToStream called!");
+        if (validLength <= startIndex) {
+            return; // Sicherheits-Exit: nichts zu schreiben
+        }
+
+        ByteBuffer buffer = ByteBuffer.allocate((validLength - startIndex) * 2).order(ByteOrder.LITTLE_ENDIAN);
+
+        for (int i = startIndex; i < validLength; i++) {
+            short pcmSample = (short) Math.max(Math.min(audioData[i] * 32767, Short.MAX_VALUE), Short.MIN_VALUE);
+            buffer.putShort(pcmSample);
+        }
+
+        stream.write(buffer.array());
+    }
+
+
+
+
+    private void writeEmptyWavHeader(FileOutputStream stream) throws IOException {
+        Log.d("AudioSeparation", "writeEmptyWavHeader called!");
+        byte[] header = new byte[44];
+        stream.write(header);
+    }
+
+    private void updateWavHeader(File file) throws IOException {
+        Log.d("AudioSeparation", "updateWavHeader called!");
+        RandomAccessFile raf = new RandomAccessFile(file, "rw");
+        int totalAudioLen = (int) (raf.length() - 44);
+        int totalDataLen = totalAudioLen + 36;
+        //int sampleRate = sampleRate; // 44100 48000
+        int byteRate = sampleRate * 2;
+
+        raf.seek(0);
+        raf.writeBytes("RIFF");
+        raf.writeInt(Integer.reverseBytes(totalDataLen));
+        raf.writeBytes("WAVE");
+        raf.writeBytes("fmt ");
+        raf.writeInt(Integer.reverseBytes(16));
+        raf.writeShort(Short.reverseBytes((short) 1));
+        raf.writeShort(Short.reverseBytes((short) 1));
+        raf.writeInt(Integer.reverseBytes(sampleRate));
+        raf.writeInt(Integer.reverseBytes(byteRate));
+        raf.writeShort(Short.reverseBytes((short) 2));
+        raf.writeShort(Short.reverseBytes((short) 16));
+        raf.writeBytes("data");
+        raf.writeInt(Integer.reverseBytes(totalAudioLen));
+
+        raf.close();
+    }
+}
+
--- a/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor.java
+++ b/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor.java
@ -0,0 +1,177 @@
+package com.example.musicseparation;
+
+import android.content.Context;
+import android.content.res.AssetFileDescriptor;
+import android.util.Log;
+
+import org.tensorflow.lite.DataType;
+import org.tensorflow.lite.Interpreter;
+import org.tensorflow.lite.support.tensorbuffer.TensorBuffer;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.HashMap;
+import java.util.Map;
+
+public class TFLiteModelProcessor {
+    private Interpreter interpreter;
+
+    public TFLiteModelProcessor(Context context, String modelPath) throws IOException {
+        this.interpreter = new Interpreter(loadModelFile(context, modelPath));
+
+        // Hole die Eingabeform des Modells
+        int[] inputShape = interpreter.getInputTensor(0).shape();
+        Log.d("ModelProcessor", "Initial Input Shape: [" + inputShape[0] + "][" + inputShape[1] + "]");
+
+        // Setze dynamische Eingabegröße
+        interpreter.resizeInput(0, new int[]{882000, 2}); // Falls nötig anpassen!
+        interpreter.allocateTensors();
+
+
+        int[] newInputShape = interpreter.getInputTensor(0).shape();
+        Log.d("ModelProcessor", "New Input Shape: [" + newInputShape[0] + "][" + newInputShape[1] + "]");
+    }
+
+    private MappedByteBuffer loadModelFile(Context context, String modelPath) throws IOException {
+        AssetFileDescriptor fileDescriptor = context.getAssets().openFd(modelPath);
+        FileInputStream inputStream = new FileInputStream(fileDescriptor.getFileDescriptor());
+        FileChannel fileChannel = inputStream.getChannel();
+        return fileChannel.map(FileChannel.MapMode.READ_ONLY, fileDescriptor.getStartOffset(), fileDescriptor.getDeclaredLength());
+    }
+
+    public float[][] processAudio(float[][] inputAudio) {
+        Log.d("ModelProcessor", "processAudio called");
+        int numSamples = inputAudio[0].length; // Anzahl der Samples
+
+        // Transponiere inputAudio von [2][1024] zu [1024][2]
+        float[][] transposedInput = new float[inputAudio[0].length][inputAudio.length];
+        for (int i = 0; i < inputAudio.length; i++) {
+            for (int j = 0; j < inputAudio[0].length; j++) {
+                transposedInput[j][i] = inputAudio[i][j];
+            }
+        }
+
+
+        float[][] vocalsOutput = new float[2][1];  // Ändere die Größe entsprechend
+        float[][] instrumentsOutput = new float[2][1];
+
+
+        int[] Outputtensor1 = interpreter.getOutputTensor(0).shapeSignature();
+        Log.d("ModelProcessor", "Output 1 Shape Signature: [" + Outputtensor1[0] + "][" + Outputtensor1[1] + "]");
+        int[] Outputtensor2 = interpreter.getOutputTensor(1).shapeSignature();
+        Log.d("ModelProcessor", "Output 2 Shape Signature: [" + Outputtensor2[0] + "][" + Outputtensor2[1] + "]");
+
+        int add = 4028;
+        int[] outputShape = interpreter.getOutputTensor(0).shapeSignature();
+        if (outputShape[1] == -1) {
+            outputShape[1] = numSamples + add; // Falls dynamisch, setze erwartete Länge
+        }
+        Log.d("ModelProcessor", "Resized Output Shape: [" + outputShape[0] + "][" + outputShape[1] + "]");
+
+        int[] outputShape2 = interpreter.getOutputTensor(1).shapeSignature();
+        if (outputShape2[1] == -1) {
+            outputShape2[1] = numSamples + add; // Falls dynamisch, setze erwartete Länge
+        }
+        Log.d("ModelProcessor", "Resized Output 2 Shape: [" + outputShape2[0] + "][" + outputShape2[1] + "]");
+
+        TensorBuffer vocalsBuffer = TensorBuffer.createFixedSize(outputShape, DataType.FLOAT32);
+        TensorBuffer instrumentalsBuffer = TensorBuffer.createFixedSize(outputShape2, DataType.FLOAT32);
+
+        Object[] inputArray = {transposedInput};
+        Map<Integer, Object> outputMap = new HashMap<>();
+        outputMap.put(0, vocalsBuffer.getBuffer());
+        outputMap.put(1, instrumentalsBuffer.getBuffer());
+        //Log.d("ModelProcessor", "outputArrays created");
+
+
+        int[] newInputShape = interpreter.getInputTensor(0).shape();
+        Log.d("ModelProcessor", "Input Shape: [" + newInputShape[0] + "][" + newInputShape[1] + "]");
+        //Log.d("ModelProcessor", "Input Audio: [" + inputAudio.length + "][" + inputAudio[0].length + "]");
+
+
+        // Logge die neue Form nach der Transposition
+        Log.d("ModelProcessor", "Transposed Input Shape: [" + transposedInput.length + "][" + transposedInput[0].length + "]");
+
+
+
+        int count = interpreter.getOutputTensorCount();
+        Log.d("ModelProcessor", "Output Tensor Count: " + count);
+        int[] OutputShape = interpreter.getOutputTensor(0).shape();
+        Log.d("ModelProcessor", "Output 1 Shape: [" + OutputShape[0] + "][" + OutputShape[1] + "]");
+        int[] OutputShape2 = interpreter.getOutputTensor(1).shape();
+        Log.d("ModelProcessor", "Output 2 Shape: [" + OutputShape2[0] + "][" + OutputShape2[1] + "]");
+        Outputtensor1 = interpreter.getOutputTensor(0).shapeSignature();
+        Log.d("ModelProcessor", "Output 1 Shape Signature: [" + Outputtensor1[0] + "][" + Outputtensor1[1] + "]");
+        Outputtensor2 = interpreter.getOutputTensor(1).shapeSignature();
+        Log.d("ModelProcessor", "Output 2 Shape Signature: [" + Outputtensor2[0] + "][" + Outputtensor2[1] + "]");
+
+        Log.d("TFLite", "Vocals Output Shape: [" + vocalsOutput.length + "][" + vocalsOutput[0].length + "]");
+        Log.d("TFLite", "Instrumentals Output Shape: [" + instrumentsOutput.length + "][" + instrumentsOutput[0].length + "]");
+
+
+        // Modell ausführen
+        //interpreter.run(transposedInput, outputBuffer);
+        interpreter.runForMultipleInputsOutputs(inputArray, outputMap);
+        Log.d("ModelProcessor", "Interpreter run completed");
+
+        Log.d("ModelProcessor", "Vocals Output Shape: [" + vocalsOutput.length + "][" + vocalsOutput[0].length + "]");
+        Log.d("ModelProcessor", "Instrumentals Output Shape: [" + instrumentsOutput.length + "][" + instrumentsOutput[0].length + "]");
+
+        Log.d("ModelProcessor", "Actual Output Shape: [" + vocalsBuffer.getShape()[0] + "][" + vocalsBuffer.getShape()[1] + "]");
+
+        // Konvertiere TensorBuffer zurück zu float[]
+        float[] chunkVocals = vocalsBuffer.getFloatArray();
+        float[] chunkInstrumentals = instrumentalsBuffer.getFloatArray();
+
+        Log.d("ModelProcessor", "chunkVocals Shape: [" + chunkVocals.length + "]");
+        Log.d("ModelProcessor", "chunkInstrumentals Shape: [" + chunkInstrumentals.length + "]");
+
+        int numChannels = vocalsBuffer.getShape()[0]; // = 2
+        int numSamples_vocals = vocalsBuffer.getShape()[1]; // = 4096
+
+        float[][] separatedVocals = new float[numChannels][numSamples_vocals - add];
+
+        for (int i = 0; i < numSamples_vocals - add; i++) {
+            separatedVocals[0][i] = chunkVocals[i];              // Linker Kanal
+            separatedVocals[1][i] = chunkVocals[i + numSamples_vocals]; // Rechter Kanal
+        }
+
+        float[][] separatedInstrumentals = new float[numChannels][numSamples_vocals - add];
+
+        for (int i = 0; i < numSamples_vocals - add; i++) {
+            separatedInstrumentals[0][i] = chunkInstrumentals[i];              // Linker Kanal
+            separatedInstrumentals[1][i] = chunkInstrumentals[i + numSamples_vocals]; // Rechter Kanal
+        }
+
+        // Debugging
+        Log.d("ModelProcessor", "Separated Vocals Shape: [" + separatedVocals.length + "][" + separatedVocals[0].length + "]");
+
+
+
+        //interpreter.getOutputTensor(0).
+        //TensorBuffer outputBuffer = TensorBuffer.createFixedSize(interpreter.getOutputTensor(0).shapeSignature(), interpreter.getOutputTensor(0).dataType());
+
+        // Gib beide Tensoren als separate Arrays zurück
+        //return new float[][] { chunkVocals, chunkInstrumentals };
+        return new float[][] { flattenArray(separatedVocals), flattenArray(separatedInstrumentals) };
+    }
+
+    private float[] flattenArray(float[][] array) {
+        float[] flattened = new float[array[0].length];
+        for (int i = 0; i < array[0].length; i++) {
+            flattened[i] = array[0][i];  // Extrahiere das erste Element jeder Zeile
+        }
+        return flattened;
+    }
+
+
+
+
+    public void close() {
+        interpreter.close();
+    }
+}
+
+
--- a/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor2Stems.java
+++ b/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor2Stems.java
@ -0,0 +1,73 @@
+package com.example.musicseparation;
+
+import android.content.Context;
+import android.content.res.AssetFileDescriptor;
+import android.util.Log;
+
+import org.tensorflow.lite.Interpreter;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.HashMap;
+import java.util.Map;
+
+public class TFLiteModelProcessor2Stems {
+    private final Interpreter interpreter;
+
+    public TFLiteModelProcessor2Stems(Context context, String modelPath) throws IOException {
+        this.interpreter = new Interpreter(loadModelFile(context, modelPath));
+        interpreter.allocateTensors();
+    }
+
+    private MappedByteBuffer loadModelFile(Context context, String modelPath) throws IOException {
+        AssetFileDescriptor fileDescriptor = context.getAssets().openFd(modelPath);
+        FileInputStream inputStream = new FileInputStream(fileDescriptor.getFileDescriptor());
+        FileChannel fileChannel = inputStream.getChannel();
+        return fileChannel.map(FileChannel.MapMode.READ_ONLY,
+                fileDescriptor.getStartOffset(),
+                fileDescriptor.getDeclaredLength());
+    }
+
+    public float[][] processAudio(float[][] stereoInput) {
+        Log.d("TFLiteModelProcessor2Stems", "processAudio called!");
+        int numSamples = stereoInput[0].length;
+        float[][] input = new float[numSamples][2];
+
+        for (int i = 0; i < numSamples; i++) {
+            input[i][0] = stereoInput[0][i];
+            input[i][1] = stereoInput[1][i];
+        }
+
+        int add = 0;
+        if (numSamples == 220500) add = 3756;
+        else if (numSamples == 441000) add = 3416;
+        else if (numSamples == 882000) add = 3760;
+        else if (numSamples == 1764000) add = 3424;
+        else if (numSamples == 3528000) add = 3776;
+
+        float[][][] outputs = new float[2][2][numSamples + add];
+        Map<Integer, Object> outputMap = new HashMap<>();
+        for (int i = 0; i < 2; i++) {
+            outputMap.put(i, outputs[i]);
+        }
+
+        Log.d("TFLiteModelProcessor2Stems", "Model about to run");
+        interpreter.runForMultipleInputsOutputs(new Object[]{input}, outputMap);
+        Log.d("TFLiteModelProcessor2Stems", "Model finished running");
+
+        float[][] separated = new float[2][numSamples];
+        for (int stem = 0; stem < 2; stem++) {
+            for (int i = 0; i < numSamples; i++) {
+                separated[stem][i] = (outputs[stem][0][i] + outputs[stem][1][i]) / 2f;
+            }
+        }
+        return separated;
+    }
+
+    public void close() {
+        interpreter.close();
+    }
+}
+
--- a/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor4Stems.java
+++ b/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor4Stems.java
@ -0,0 +1,80 @@
+package com.example.musicseparation;
+
+import android.content.Context;
+import android.content.res.AssetFileDescriptor;
+import android.util.Log;
+
+import org.tensorflow.lite.Interpreter;
+import org.tensorflow.lite.support.tensorbuffer.TensorBuffer;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.HashMap;
+import java.util.Map;
+
+public class TFLiteModelProcessor4Stems {
+    private final Interpreter interpreter;
+
+    public TFLiteModelProcessor4Stems(Context context, String modelPath) throws IOException {
+        this.interpreter = new Interpreter(loadModelFile(context, modelPath));
+
+        int[] inputShape = interpreter.getInputTensor(0).shape();
+        Log.d("ModelProcessor", "Initial Input Shape: [" + inputShape[0] + "][" + inputShape[1] + "]");
+        //interpreter.resizeInput(0, new int[]{882000, 2}); // Falls nötig anpassen!
+
+        interpreter.allocateTensors();
+    }
+
+    private MappedByteBuffer loadModelFile(Context context, String modelPath) throws IOException {
+        AssetFileDescriptor fileDescriptor = context.getAssets().openFd(modelPath);
+        FileInputStream inputStream = new FileInputStream(fileDescriptor.getFileDescriptor());
+        FileChannel fileChannel = inputStream.getChannel();
+        return fileChannel.map(FileChannel.MapMode.READ_ONLY,
+                fileDescriptor.getStartOffset(),
+                fileDescriptor.getDeclaredLength());
+    }
+
+    public float[][] processAudio(float[][] stereoInput) {
+        Log.d("TFLiteModelProcessor4Stems", "processAudio called!");
+        int numSamples = stereoInput[0].length;
+        float[][] input = new float[numSamples][2]; // [samples][channels]
+
+        for (int i = 0; i < numSamples; i++) {
+            input[i][0] = stereoInput[0][i];
+            input[i][1] = stereoInput[1][i];
+        }
+
+        int add = 0;
+        if (numSamples == 220500) add = 3756;
+        else if (numSamples == 441000) add = 3416;
+        else if (numSamples == 882000) add = 3760;
+        else if (numSamples == 1764000) add = 3424;
+        else if (numSamples == 3528000) add = 3776;
+
+        float[][][] outputs = new float[4][2][numSamples + add];
+        Map<Integer, Object> outputMap = new HashMap<>();
+        for (int i = 0; i < 4; i++) {
+            outputMap.put(i, outputs[i]);
+        }
+
+        Log.d("TFLiteModelProcessor4Stems", "Model about to run");
+        interpreter.runForMultipleInputsOutputs(new Object[]{input}, outputMap);
+        Log.d("TFLiteModelProcessor4Stems", "Model finished running");
+
+        float[][] separated = new float[4][numSamples];
+        for (int stem = 0; stem < 4; stem++) {
+            for (int i = 0; i < numSamples; i++) {
+                // Mono-Mix
+                separated[stem][i] = (outputs[stem][0][i] + outputs[stem][1][i]) / 2f;
+            }
+        }
+        return separated;
+    }
+
+    public void close() {
+        interpreter.close();
+    }
+}
+
--- a/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor5Stems.java
+++ b/app/src/main/java/com/example/musicseparation/TFLiteModelProcessor5Stems.java
@ -0,0 +1,74 @@
+package com.example.musicseparation;
+
+import android.content.Context;
+import android.content.res.AssetFileDescriptor;
+import android.util.Log;
+
+import org.tensorflow.lite.Interpreter;
+import org.tensorflow.lite.support.tensorbuffer.TensorBuffer;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
+import java.util.HashMap;
+import java.util.Map;
+
+public class TFLiteModelProcessor5Stems {
+    private final Interpreter interpreter;
+
+    public TFLiteModelProcessor5Stems(Context context, String modelPath) throws IOException {
+        this.interpreter = new Interpreter(loadModelFile(context, modelPath));
+        interpreter.allocateTensors();
+    }
+
+    private MappedByteBuffer loadModelFile(Context context, String modelPath) throws IOException {
+        AssetFileDescriptor fileDescriptor = context.getAssets().openFd(modelPath);
+        FileInputStream inputStream = new FileInputStream(fileDescriptor.getFileDescriptor());
+        FileChannel fileChannel = inputStream.getChannel();
+        return fileChannel.map(FileChannel.MapMode.READ_ONLY,
+                fileDescriptor.getStartOffset(),
+                fileDescriptor.getDeclaredLength());
+    }
+
+    public float[][] processAudio(float[][] stereoInput) {
+        Log.d("TFLiteModelProcessor5Stems", "processAudio called!");
+        int numSamples = stereoInput[0].length;
+        float[][] input = new float[numSamples][2]; // [samples][channels]
+
+        for (int i = 0; i < numSamples; i++) {
+            input[i][0] = stereoInput[0][i];
+            input[i][1] = stereoInput[1][i];
+        }
+
+        int add = 0;
+        if (numSamples == 220500) add = 3756;
+        else if (numSamples == 441000) add = 3416;
+        else if (numSamples == 882000) add = 3760;
+        else if (numSamples == 1764000) add = 3424;
+        else if (numSamples == 3528000) add = 3776;
+
+        float[][][] outputs = new float[5][2][numSamples + add];
+        Map<Integer, Object> outputMap = new HashMap<>();
+        for (int i = 0; i < 5; i++) {
+            outputMap.put(i, outputs[i]);
+        }
+
+        Log.d("TFLiteModelProcessor5Stems", "Model about to run");
+        interpreter.runForMultipleInputsOutputs(new Object[]{input}, outputMap);
+        Log.d("TFLiteModelProcessor5Stems", "Model finished running");
+
+        float[][] separated = new float[5][numSamples];
+        for (int stem = 0; stem < 5; stem++) {
+            for (int i = 0; i < numSamples; i++) {
+                separated[stem][i] = (outputs[stem][0][i] + outputs[stem][1][i]) / 2f;
+            }
+        }
+        return separated;
+    }
+
+    public void close() {
+        interpreter.close();
+    }
+}
+
--- a/app/src/main/java/com/example/musicseparation/WavDataHolder.java
+++ b/app/src/main/java/com/example/musicseparation/WavDataHolder.java
@ -0,0 +1,29 @@
+package com.example.musicseparation;
+
+import android.net.Uri;
+
+public class WavDataHolder {
+    private static WavFileLoader.WavData wavData;
+    private static Uri audioUri;
+
+    public static void setWavData(WavFileLoader.WavData data) {
+        wavData = data;
+    }
+
+    public static WavFileLoader.WavData getWavData() {
+        return wavData;
+    }
+    public static void setAudioUri(Uri uri) {
+        audioUri = uri;
+    }
+
+    public static Uri getAudioUri() {
+        return audioUri;
+    }
+
+    public static void clear() {
+        wavData = null;
+        audioUri = null;
+    }
+}
+
--- a/app/src/main/java/com/example/musicseparation/WavFileLoader.java
+++ b/app/src/main/java/com/example/musicseparation/WavFileLoader.java
@ -0,0 +1,125 @@
+// WavFileLoader.java
+package com.example.musicseparation;
+
+import static java.nio.ByteOrder.BIG_ENDIAN;
+import static java.nio.ByteOrder.LITTLE_ENDIAN;
+
+import android.content.Context;
+import android.net.Uri;
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.ArrayList;
+
+
+public class WavFileLoader {
+    public static class WavData {
+        //public short[] audioData;
+        public float[] audioData;
+        public int sampleRate;
+    }
+
+    public WavData loadWavFile(Context context, Uri uri) throws IOException {
+        Log.d("WavFileLoader", "loadWavFile called");
+        InputStream inputStream = context.getContentResolver().openInputStream(uri);
+
+        //AssetManager assetManager = getAssets();
+        //AssetManager assetManager = context.getAssets();
+        //InputStream inputStream = assetManager.open("uri");
+        DataInputStream dis = new DataInputStream(new BufferedInputStream(inputStream));
+
+        // **Lese die ersten 12 Bytes (RIFF-Header)**
+        byte[] riffHeader = new byte[12];
+        dis.readFully(riffHeader);
+
+        if (!new String(riffHeader, 0, 4).equals("RIFF") || !new String(riffHeader, 8, 4).equals("WAVE")) {
+            throw new IOException("Ungültiges WAV-Format (kein RIFF/WAVE Header gefunden)");
+        }
+
+        // **Suche den "data"-Chunk**
+        int sampleRate = 0, bitsPerSample = 0, numChannels = 0, dataSize = 0;
+        while (dis.available() > 0) {
+            byte[] chunkHeader = new byte[8];
+            dis.readFully(chunkHeader);
+            String chunkName = new String(chunkHeader, 0, 4);
+            int chunkSize = ByteBuffer.wrap(chunkHeader, 4, 4).order(ByteOrder.LITTLE_ENDIAN).getInt();
+
+            if (chunkName.equals("fmt ")) {
+                byte[] fmtChunk = new byte[chunkSize];
+                dis.readFully(fmtChunk);
+
+                ByteBuffer fmtBuffer = ByteBuffer.wrap(fmtChunk).order(ByteOrder.LITTLE_ENDIAN);
+                fmtBuffer.position(0);
+                int audioFormat = fmtBuffer.getShort(); // 1 = PCM
+                numChannels = fmtBuffer.getShort();     // **WICHTIG**
+                sampleRate = fmtBuffer.getInt();
+                fmtBuffer.getInt(); // ByteRate (ignorieren)
+                fmtBuffer.getShort(); // BlockAlign (ignorieren)
+                bitsPerSample = fmtBuffer.getShort();
+            } else if (chunkName.equals("data")) {
+                dataSize = chunkSize;
+                break; // Wir haben den Daten-Chunk gefunden!
+            } else {
+                dis.skipBytes(chunkSize);
+            }
+        }
+
+        Log.d("WavFileLoader", "number of channels: " + numChannels);
+
+        if (dataSize == 0) {
+            throw new IOException("Kein 'data' Chunk in WAV-Datei gefunden!");
+        }
+
+        // **❌ FALSCHE Sample-Berechnung**
+        // int numSamples = dataSize / (bitsPerSample / 8);
+
+        // **✅ KORREKTE Sample-Berechnung (Stereo wird berücksichtigt!)**
+        int numSamples = (dataSize / (bitsPerSample / 8)) / numChannels;
+
+        float[] samples = new float[numSamples];
+
+        // **Lese die PCM-Daten**
+        byte[] audioData = new byte[dataSize];
+        dis.readFully(audioData);
+        dis.close();
+
+        ByteBuffer byteBuffer = ByteBuffer.wrap(audioData).order(ByteOrder.LITTLE_ENDIAN);
+
+        // **Stereo auf Mono reduzieren**
+        if (numChannels > 1) {
+            for (int i = 0; i < numSamples; i++) {
+                float left = byteBuffer.getShort() / 32768.0f;
+                float right = byteBuffer.getShort() / 32768.0f;
+                samples[i] = (left + right) / 2; // Durchschnitt von L+R für Mono
+            }
+        } else {
+            for (int i = 0; i < numSamples; i++) {
+                samples[i] = byteBuffer.getShort() / 32768.0f;
+            }
+        }
+
+
+        // **Debug-Log zur Überprüfung**
+        System.out.println("Sample-Rate: " + sampleRate);
+        System.out.println("Kanäle: " + numChannels);
+        System.out.println("Bits per Sample: " + bitsPerSample);
+        System.out.println("Daten-Größe: " + dataSize);
+        System.out.println("Berechnete Samples: " + numSamples);
+        System.out.println("Berechnete Dauer (s): " + (numSamples / (float) sampleRate));
+
+        WavData wavData = new WavData();
+        //wavData.audioData = float32ToInt16(samples);
+        wavData.audioData = samples;;
+        //wavData.audioData = float32ToInt16(test);
+        wavData.sampleRate = sampleRate;
+        return wavData;
+    }
+}
+
--- a/app/src/main/java/com/example/musicseparation/WaveformView.java
+++ b/app/src/main/java/com/example/musicseparation/WaveformView.java
@ -0,0 +1,179 @@
+// WaveformView.java
+package com.example.musicseparation;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.media.MediaPlayer;
+import android.net.Uri;
+import android.util.AttributeSet;
+import android.view.View;
+
+import java.io.IOException;
+
+public class WaveformView extends View {
+    private Paint paint = new Paint();
+    private float[] samples; // Downsampled and normalized samples
+    private MediaPlayer mediaPlayer;
+    private Uri audioUri;
+
+
+    private int playbackPositionMs = 0;
+    private final Paint markerPaint = new Paint();
+
+
+    public WaveformView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public WaveformView(Context context) {
+        super(context);
+        init();
+    }
+
+    private void init() {
+        paint.setColor(Color.BLUE);
+        paint.setStrokeWidth(2);
+        //paint.setAntiAlias(true); // Glattere Darstellung
+
+        markerPaint.setColor(Color.RED);
+        markerPaint.setStrokeWidth(3);
+        markerPaint.setAntiAlias(true);
+
+        mediaPlayer = new MediaPlayer();
+    }
+
+    public void updatePlaybackPosition(int positionMs) {
+        this.playbackPositionMs = positionMs;
+        invalidate(); // Neu zeichnen, um Marker zu zeigen
+    }
+
+
+    public void setAudioUri(Uri uri) {
+        this.audioUri = uri;
+    }
+
+    public void playAudio(Context context) {
+        if (audioUri == null) return;
+        try {
+            mediaPlayer.reset();
+            mediaPlayer.setDataSource(context, audioUri);
+            mediaPlayer.prepare();
+            mediaPlayer.start();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void stopAudio() {
+        if (mediaPlayer.isPlaying()) {
+            mediaPlayer.stop();
+        }
+    }
+
+    public boolean isPlaying() {
+        return mediaPlayer != null && mediaPlayer.isPlaying();
+    }
+
+    public int getCurrentPosition() {
+        return mediaPlayer != null ? mediaPlayer.getCurrentPosition() : 0;
+    }
+
+    public int getDuration() {
+        return mediaPlayer != null ? mediaPlayer.getDuration() : 1; // 1 zur Sicherheit gegen Division durch 0
+    }
+
+    public void seekTo(int positionMs) {
+        if (mediaPlayer != null) {
+            mediaPlayer.seekTo(positionMs);
+        }
+    }
+
+
+    /**
+     * Übergibt rohe Audiodaten (z. B. PCM float-Werte) und berechnet daraus
+     * eine vereinfachte Darstellung für die Breite des Views.
+     */
+    public void setSamples(float[] rawSamples) {
+        int viewWidth = getWidth();
+        if (viewWidth == 0) viewWidth = 1000; // Fallback für nicht gemessenen View
+
+        float[] downsampled = new float[viewWidth];
+        int samplesPerPixel = rawSamples.length / viewWidth;
+        samplesPerPixel = Math.max(1, samplesPerPixel);
+
+        for (int i = 0; i < viewWidth; i++) {
+            float sum = 0f;
+            int count = 0;
+            for (int j = 0; j < samplesPerPixel; j++) {
+                int index = i * samplesPerPixel + j;
+                if (index < rawSamples.length) {
+                    sum += Math.abs(rawSamples[index]);
+                    count++;
+                }
+            }
+            downsampled[i] = (count > 0) ? (sum / count) : 0f; // Durchschnitt der Absolutwerte
+        }
+
+        this.samples = downsampled;
+        invalidate();
+    }
+
+
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        if (samples == null || samples.length == 0) return;
+
+        int width = getWidth();
+        int height = getHeight();
+        int centerY = height / 2;
+
+        for (int i = 0; i < samples.length && i < width; i++) {
+            float sampleValue = samples[i] * centerY;
+            canvas.drawLine(i, centerY - sampleValue, i, centerY + sampleValue, paint);
+        }
+
+        if (mediaPlayer != null && mediaPlayer.getDuration() > 0) {
+            float progress = playbackPositionMs / (float) mediaPlayer.getDuration();
+            int markerX = (int) (progress * getWidth());
+            canvas.drawLine(markerX, 0, markerX, getHeight(), markerPaint);
+        }
+
+    }
+
+
+
+    /*
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        if (samples == null || samples.length == 0) return;
+
+        int width = getWidth();
+        int height = getHeight();
+        int centerY = height / 2;
+
+        Path path = new Path();
+
+        // Startpunkt der Linie
+        path.moveTo(0, centerY - samples[0] * centerY);
+
+        // Linie durch alle Samples
+        for (int i = 1; i < samples.length && i < width; i++) {
+            float x = i;
+            float y = centerY - samples[i] * centerY;
+            path.lineTo(x, y);
+        }
+
+        canvas.drawPath(path, paint);
+    }
+
+     */
+
+}
+
+
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable/ic_launcher_foreground.xml
@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@ -0,0 +1,175 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="8dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+        <Button
+            android:id="@+id/buttonLoadAudio"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Audio laden" />
+
+
+    </LinearLayout>
+
+    <TextView
+        android:id="@+id/textViewa"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="2 Stems: Vocals and Instrumental \n4 Stems: Vocals, Bass, Drums, Other \n5 Stems: Vocals, Piano, Bass, Drums, Other"
+        android:paddingTop="4dp" />
+
+    <RadioGroup
+        android:id="@+id/radioGroupStems"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal"
+        android:layout_marginTop="4dp"
+        android:layout_marginBottom="0dp">
+
+        <RadioButton
+            android:id="@+id/radioButton2Stems"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:checked="true"
+            android:text="2 Stems" />
+
+        <RadioButton
+            android:id="@+id/radioButton4Stems"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="4 Stems"
+            android:layout_marginStart="16dp" />
+
+        <RadioButton
+            android:id="@+id/radioButton5Stems"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="5 Stems"
+            android:layout_marginStart="16dp" />
+
+    </RadioGroup>
+
+
+
+    <TextView
+        android:id="@+id/textViewInfo"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Datei 1 Info erscheint hier..."
+        android:paddingTop="0dp" />
+
+    <com.example.musicseparation.WaveformView
+        android:id="@+id/waveformOriginal"
+        android:layout_width="match_parent"
+        android:layout_height="150dp"
+        android:background="#DDDDDD"
+        android:layout_marginBottom="4dp" />
+
+    <SeekBar
+        android:id="@+id/seekBar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="4dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+
+        <Button
+            android:id="@+id/buttonPlay"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Play 1" />
+
+        <Button
+            android:id="@+id/buttonStop"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Stop 1" />
+    </LinearLayout>
+
+    <TextView
+        android:id="@+id/textViewb"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="How many Samples should be processed? \n 1: 220500 - 5: 3528000"
+        android:paddingTop="4dp" />
+
+    <RadioGroup
+        android:id="@+id/radioGroupChunks"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal"
+        android:layout_marginTop="4dp">
+
+        <RadioButton
+            android:id="@+id/radioButton1"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:checked="true"
+            android:text="1" />
+
+        <RadioButton
+            android:id="@+id/radioButton2"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="2"
+            android:layout_marginStart="16dp" />
+
+        <RadioButton
+            android:id="@+id/radioButton3"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="3"
+            android:layout_marginStart="16dp" />
+
+        <RadioButton
+            android:id="@+id/radioButton4"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="4"
+            android:layout_marginStart="16dp" />
+
+        <RadioButton
+            android:id="@+id/radioButton5"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="5"
+            android:layout_marginStart="16dp" />
+
+    </RadioGroup>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+
+        <Button
+            android:id="@+id/buttonStartSeparation"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:text="Separation starten" />
+
+    </LinearLayout>
+
+</LinearLayout>
--- a/app/src/main/res/layout/activity_separation.xml
+++ b/app/src/main/res/layout/activity_separation.xml
@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:gravity="center">
+
+    <!-- Hier später UI-Elemente hinzufügen -->
+
+</LinearLayout>
--- a/app/src/main/res/layout/activity_separation_2stems.xml
+++ b/app/src/main/res/layout/activity_separation_2stems.xml
@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="16dp">
+
+        <TextView
+            android:id="@+id/textViewProgress"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Separation wird vorbereitet..."
+            android:textSize="18sp"
+            android:paddingBottom="16dp" />
+
+        <!-- Original Audio -->
+        <include layout="@layout/waveform_element_0" />
+
+        <!-- Stem 1 -->
+        <include layout="@layout/waveform_element_1" />
+
+        <!-- Stem 2 -->
+        <include layout="@layout/waveform_element_2" />
+
+    </LinearLayout>
+</ScrollView>
+
--- a/app/src/main/res/layout/activity_separation_4stems.xml
+++ b/app/src/main/res/layout/activity_separation_4stems.xml
@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="16dp">
+
+        <TextView
+            android:id="@+id/textViewProgress"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Separation wird vorbereitet..."
+            android:textSize="18sp"
+            android:paddingBottom="16dp" />
+
+        <!-- Original Audio -->
+        <include layout="@layout/waveform_element_0" />
+
+        <!-- Stem 1 -->
+        <include layout="@layout/waveform_element_1" />
+
+        <!-- Stem 2 -->
+        <include layout="@layout/waveform_element_2" />
+
+        <!-- Stem 3 -->
+        <include layout="@layout/waveform_element_3" />
+
+        <!-- Stem 4 -->
+        <include layout="@layout/waveform_element_4" />
+
+    </LinearLayout>
+</ScrollView>
--- a/app/src/main/res/layout/activity_separation_5stems.xml
+++ b/app/src/main/res/layout/activity_separation_5stems.xml
@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="16dp">
+
+        <TextView
+            android:id="@+id/textViewProgress"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Separation wird vorbereitet..."
+            android:textSize="18sp"
+            android:paddingBottom="16dp" />
+
+        <!-- Original Audio -->
+        <include layout="@layout/waveform_element_0" />
+
+        <!-- Stem 1 -->
+        <include layout="@layout/waveform_element_1" />
+
+        <!-- Stem 2 -->
+        <include layout="@layout/waveform_element_2" />
+
+        <!-- Stem 3 -->
+        <include layout="@layout/waveform_element_3" />
+
+        <!-- Stem 4 -->
+        <include layout="@layout/waveform_element_4" />
+
+        <!-- Stem 5 -->
+        <include layout="@layout/waveform_element_5" />
+
+    </LinearLayout>
+</ScrollView>
--- a/app/src/main/res/layout/waveform_element_0.xml
+++ b/app/src/main/res/layout/waveform_element_0.xml
@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingBottom="16dp">
+
+
+
+    <TextView
+        android:id="@+id/textViewInfo0"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Datei Info 0 erscheint hier..."
+        android:paddingTop="8dp" />
+
+    <com.example.musicseparation.WaveformView
+        android:id="@+id/waveformView0"
+        android:layout_width="match_parent"
+        android:layout_height="150dp"
+        android:background="#DDDDDD"
+        android:layout_marginTop="8dp" />
+
+    <SeekBar
+        android:id="@+id/seekBar0"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+        <Button
+            android:id="@+id/buttonPlay0"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Play" />
+
+        <Button
+            android:id="@+id/buttonStop0"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Stop" />
+    </LinearLayout>
+</LinearLayout>
+
--- a/app/src/main/res/layout/waveform_element_1.xml
+++ b/app/src/main/res/layout/waveform_element_1.xml
@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingBottom="16dp">
+
+
+
+    <TextView
+        android:id="@+id/textViewInfo1"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Datei Info 1 erscheint hier..."
+        android:paddingTop="8dp" />
+
+    <com.example.musicseparation.WaveformView
+        android:id="@+id/waveformView1"
+        android:layout_width="match_parent"
+        android:layout_height="150dp"
+        android:background="#DDDDDD"
+        android:layout_marginTop="8dp" />
+
+    <SeekBar
+        android:id="@+id/seekBar1"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+        <Button
+            android:id="@+id/buttonPlay1"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Play" />
+
+        <Button
+            android:id="@+id/buttonStop1"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Stop" />
+    </LinearLayout>
+</LinearLayout>
--- a/app/src/main/res/layout/waveform_element_2.xml
+++ b/app/src/main/res/layout/waveform_element_2.xml
@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingBottom="16dp">
+
+
+
+    <TextView
+        android:id="@+id/textViewInfo2"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Datei Info 2 erscheint hier..."
+        android:paddingTop="8dp" />
+
+    <com.example.musicseparation.WaveformView
+        android:id="@+id/waveformView2"
+        android:layout_width="match_parent"
+        android:layout_height="150dp"
+        android:background="#DDDDDD"
+        android:layout_marginTop="8dp" />
+
+    <SeekBar
+        android:id="@+id/seekBar2"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+        <Button
+            android:id="@+id/buttonPlay2"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Play" />
+
+        <Button
+            android:id="@+id/buttonStop2"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Stop" />
+    </LinearLayout>
+</LinearLayout>
--- a/app/src/main/res/layout/waveform_element_3.xml
+++ b/app/src/main/res/layout/waveform_element_3.xml
@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingBottom="16dp">
+
+
+
+    <TextView
+        android:id="@+id/textViewInfo3"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Datei Info 3 erscheint hier..."
+        android:paddingTop="8dp" />
+
+    <com.example.musicseparation.WaveformView
+        android:id="@+id/waveformView3"
+        android:layout_width="match_parent"
+        android:layout_height="150dp"
+        android:background="#DDDDDD"
+        android:layout_marginTop="8dp" />
+
+    <SeekBar
+        android:id="@+id/seekBar3"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+        <Button
+            android:id="@+id/buttonPlay3"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Play" />
+
+        <Button
+            android:id="@+id/buttonStop3"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Stop" />
+    </LinearLayout>
+</LinearLayout>
--- a/app/src/main/res/layout/waveform_element_4.xml
+++ b/app/src/main/res/layout/waveform_element_4.xml
@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingBottom="16dp">
+
+
+
+    <TextView
+        android:id="@+id/textViewInfo4"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Datei Info 4 erscheint hier..."
+        android:paddingTop="8dp" />
+
+    <com.example.musicseparation.WaveformView
+        android:id="@+id/waveformView4"
+        android:layout_width="match_parent"
+        android:layout_height="150dp"
+        android:background="#DDDDDD"
+        android:layout_marginTop="8dp" />
+
+    <SeekBar
+        android:id="@+id/seekBar4"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+        <Button
+            android:id="@+id/buttonPlay4"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Play" />
+
+        <Button
+            android:id="@+id/buttonStop4"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Stop" />
+    </LinearLayout>
+</LinearLayout>
--- a/app/src/main/res/layout/waveform_element_5.xml
+++ b/app/src/main/res/layout/waveform_element_5.xml
@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingBottom="16dp">
+
+
+
+    <TextView
+        android:id="@+id/textViewInfo5"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Datei Info 5 erscheint hier..."
+        android:paddingTop="8dp" />
+
+    <com.example.musicseparation.WaveformView
+        android:id="@+id/waveformView5"
+        android:layout_width="match_parent"
+        android:layout_height="150dp"
+        android:background="#DDDDDD"
+        android:layout_marginTop="8dp" />
+
+    <SeekBar
+        android:id="@+id/seekBar5"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_horizontal">
+
+        <Button
+            android:id="@+id/buttonPlay5"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Play" />
+
+        <Button
+            android:id="@+id/buttonStop5"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:text="Stop" />
+    </LinearLayout>
+
+</LinearLayout>
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@ -0,0 +1,10 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context="com.example.musicseparation.MainActivity">
+    <item
+        android:id="@+id/action_settings"
+        android:orderInCategory="100"
+        android:title="@string/action_settings"
+        app:showAsAction="never" />
+</menu>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/navigation/nav_graph.xml
+++ b/app/src/main/res/navigation/nav_graph.xml
@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/nav_graph"
+    app:startDestination="@id/FirstFragment">
+
+    <fragment
+        android:id="@+id/FirstFragment"
+        android:name="com.example.musicseparation.FirstFragment"
+        android:label="@string/first_fragment_label"
+        tools:layout="@layout/fragment_first">
+
+        <action
+            android:id="@+id/action_FirstFragment_to_SecondFragment"
+            app:destination="@id/SecondFragment" />
+    </fragment>
+    <fragment
+        android:id="@+id/SecondFragment"
+        android:name="com.example.musicseparation.SecondFragment"
+        android:label="@string/second_fragment_label"
+        tools:layout="@layout/fragment_second">
+
+        <action
+            android:id="@+id/action_SecondFragment_to_FirstFragment"
+            app:destination="@id/FirstFragment" />
+    </fragment>
+</navigation>
--- a/app/src/main/res/values-land/dimens.xml
+++ b/app/src/main/res/values-land/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">48dp</dimen>
+</resources>
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@ -0,0 +1,7 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.MusicSeparation" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your dark theme here. -->
+        <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
+    </style>
+</resources>
--- a/app/src/main/res/values-v23/themes.xml
+++ b/app/src/main/res/values-v23/themes.xml
@ -0,0 +1,9 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+
+    <style name="Theme.MusicSeparation" parent="Base.Theme.MusicSeparation">
+        <!-- Transparent system bars for edge-to-edge. -->
+        <item name="android:navigationBarColor">@android:color/transparent</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="android:windowLightStatusBar">?attr/isLightTheme</item>
+    </style>
+</resources>
--- a/app/src/main/res/values-w1240dp/dimens.xml
+++ b/app/src/main/res/values-w1240dp/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">200dp</dimen>
+</resources>
--- a/app/src/main/res/values-w600dp/dimens.xml
+++ b/app/src/main/res/values-w600dp/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">48dp</dimen>
+</resources>
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,46 @@
+<resources>
+    <string name="app_name">MusicSeparation</string>
+    <string name="action_settings">Settings</string>
+    <!-- Strings used for fragments for navigation -->
+    <string name="first_fragment_label">First Fragment</string>
+    <string name="second_fragment_label">Second Fragment</string>
+    <string name="next">Next</string>
+    <string name="previous">Previous</string>
+
+    <string name="lorem_ipsum">
+        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam in scelerisque sem. Mauris
+        volutpat, dolor id interdum ullamcorper, risus dolor egestas lectus, sit amet mattis purus
+        dui nec risus. Maecenas non sodales nisi, vel dictum dolor. Class aptent taciti sociosqu ad
+        litora torquent per conubia nostra, per inceptos himenaeos. Suspendisse blandit eleifend
+        diam, vel rutrum tellus vulputate quis. Aliquam eget libero aliquet, imperdiet nisl a,
+        ornare ex. Sed rhoncus est ut libero porta lobortis. Fusce in dictum tellus.\n\n
+        Suspendisse interdum ornare ante. Aliquam nec cursus lorem. Morbi id magna felis. Vivamus
+        egestas, est a condimentum egestas, turpis nisl iaculis ipsum, in dictum tellus dolor sed
+        neque. Morbi tellus erat, dapibus ut sem a, iaculis tincidunt dui. Interdum et malesuada
+        fames ac ante ipsum primis in faucibus. Curabitur et eros porttitor, ultricies urna vitae,
+        molestie nibh. Phasellus at commodo eros, non aliquet metus. Sed maximus nisl nec dolor
+        bibendum, vel congue leo egestas.\n\n
+        Sed interdum tortor nibh, in sagittis risus mollis quis. Curabitur mi odio, condimentum sit
+        amet auctor at, mollis non turpis. Nullam pretium libero vestibulum, finibus orci vel,
+        molestie quam. Fusce blandit tincidunt nulla, quis sollicitudin libero facilisis et. Integer
+        interdum nunc ligula, et fermentum metus hendrerit id. Vestibulum lectus felis, dictum at
+        lacinia sit amet, tristique id quam. Cras eu consequat dui. Suspendisse sodales nunc ligula,
+        in lobortis sem porta sed. Integer id ultrices magna, in luctus elit. Sed a pellentesque
+        est.\n\n
+        Aenean nunc velit, lacinia sed dolor sed, ultrices viverra nulla. Etiam a venenatis nibh.
+        Morbi laoreet, tortor sed facilisis varius, nibh orci rhoncus nulla, id elementum leo dui
+        non lorem. Nam mollis ipsum quis auctor varius. Quisque elementum eu libero sed commodo. In
+        eros nisl, imperdiet vel imperdiet et, scelerisque a mauris. Pellentesque varius ex nunc,
+        quis imperdiet eros placerat ac. Duis finibus orci et est auctor tincidunt. Sed non viverra
+        ipsum. Nunc quis augue egestas, cursus lorem at, molestie sem. Morbi a consectetur ipsum, a
+        placerat diam. Etiam vulputate dignissim convallis. Integer faucibus mauris sit amet finibus
+        convallis.\n\n
+        Phasellus in aliquet mi. Pellentesque habitant morbi tristique senectus et netus et
+        malesuada fames ac turpis egestas. In volutpat arcu ut felis sagittis, in finibus massa
+        gravida. Pellentesque id tellus orci. Integer dictum, lorem sed efficitur ullamcorper,
+        libero justo consectetur ipsum, in mollis nisl ex sed nisl. Donec maximus ullamcorper
+        sodales. Praesent bibendum rhoncus tellus nec feugiat. In a ornare nulla. Donec rhoncus
+        libero vel nunc consequat, quis tincidunt nisl eleifend. Cras bibendum enim a justo luctus
+        vestibulum. Fusce dictum libero quis erat maximus, vitae volutpat diam dignissim.
+    </string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@ -0,0 +1,9 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.MusicSeparation" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your light theme here. -->
+        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
+    </style>
+
+    <style name="Theme.MusicSeparation" parent="Base.Theme.MusicSeparation" />
+</resources>
--- a/app/src/main/res/xml/backup_rules.xml
+++ b/app/src/main/res/xml/backup_rules.xml
@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
--- a/app/src/main/res/xml/data_extraction_rules.xml
+++ b/app/src/main/res/xml/data_extraction_rules.xml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
--- a/app/src/test/java/com/example/musicseparation/ExampleUnitTest.java
+++ b/app/src/test/java/com/example/musicseparation/ExampleUnitTest.java
@ -0,0 +1,17 @@
+package com.example.musicseparation;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}
--- a/build.gradle.kts
+++ b/build.gradle.kts
@ -0,0 +1,4 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    alias(libs.plugins.android.application) apply false
+}
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@ -0,0 +1,24 @@
+[versions]
+agp = "8.7.3"
+junit = "4.13.2"
+junitVersion = "1.2.1"
+espressoCore = "3.6.1"
+appcompat = "1.7.0"
+material = "1.12.0"
+constraintlayout = "2.2.1"
+navigationFragment = "2.8.9"
+navigationUi = "2.8.9"
+
+[libraries]
+junit = { group = "junit", name = "junit", version.ref = "junit" }
+ext-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
+material = { group = "com.google.android.material", name = "material", version.ref = "material" }
+constraintlayout = { group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout" }
+navigation-fragment = { group = "androidx.navigation", name = "navigation-fragment", version.ref = "navigationFragment" }
+navigation-ui = { group = "androidx.navigation", name = "navigation-ui", version.ref = "navigationUi" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Mon Apr 28 12:51:47 CEST 2025
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/185
+++ b/185
@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@ -0,0 +1,24 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "MusicSeparation"
+include(":app")
+
				`@ -0,0 +1 @@`
				`app/src/main/assets/*.tflite filter=lfs diff=lfs merge=lfs -text`