diff --git a/app/src/main/java/com/example/greenwatch/Mikrofon.java b/app/src/main/java/com/example/greenwatch/Mikrofon.java
index 16dd0d2..2f7601c 100644
--- a/app/src/main/java/com/example/greenwatch/Mikrofon.java
+++ b/app/src/main/java/com/example/greenwatch/Mikrofon.java
@@ -28,7 +28,7 @@ public class Mikrofon extends AppCompatActivity {
 
     private boolean detection_mic = false;
     private String zeit = "0";
-    private boolean kalibrierung_do;
+    private boolean kalibrierung_do = true;
     private float threshold = 40;
     private float sensitivity = 5;
     private final static String KEY_WERT = "KEY_WERT_" + Mikrofon.class.getSimpleName();