Update NEU: (DigitalFilterTest.py)
DigitalFilterTest.py hinzugefügt. Dieses Skript beinhaltet die Differenzengleichung eines Bandpass nach Tobola MEM_C Vorlesung. Außerdem plottet es schnell die Frequenzen um zu testen ob der Filter funktioniert.
This commit is contained in:
seyffejn
parent
e72a61c0c2
commit
4f72924cb8
51
TinnitusAnalyse/.idea/workspace.xml
generated
51
TinnitusAnalyse/.idea/workspace.xml
generated
@ -2,7 +2,6 @@
|
||||
<project version="4">
|
||||
<component name="ChangeListManager">
|
||||
<list default="true" id="5b3f2136-e422-4072-84be-e86e40fa2d55" name="Default Changelist" comment="">
|
||||
<change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
|
||||
<change beforePath="$PROJECT_DIR$/SoundGenerator.py" beforeDir="false" afterPath="$PROJECT_DIR$/SoundGenerator.py" afterDir="false" />
|
||||
<change beforePath="$PROJECT_DIR$/TinnitusDaten.csv" beforeDir="false" afterPath="$PROJECT_DIR$/TinnitusDaten.csv" afterDir="false" />
|
||||
</list>
|
||||
@ -14,11 +13,11 @@
|
||||
</component>
|
||||
<component name="FileEditorManager">
|
||||
<leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
|
||||
<file pinned="false" current-in-tab="false">
|
||||
<file pinned="false" current-in-tab="true">
|
||||
<entry file="file://$PROJECT_DIR$/TinnitusAnalyse_GUI.py">
|
||||
<provider selected="true" editor-type-id="text-editor">
|
||||
<state relative-caret-position="398">
|
||||
<caret line="299" lean-forward="true" selection-start-line="299" selection-end-line="299" />
|
||||
<state relative-caret-position="395">
|
||||
<caret line="99" lean-forward="true" selection-start-line="99" selection-end-line="99" />
|
||||
<folding>
|
||||
<element signature="e#0#117#0" expanded="true" />
|
||||
</folding>
|
||||
@ -35,11 +34,11 @@
|
||||
</provider>
|
||||
</entry>
|
||||
</file>
|
||||
<file pinned="false" current-in-tab="true">
|
||||
<file pinned="false" current-in-tab="false">
|
||||
<entry file="file://$PROJECT_DIR$/SoundGenerator.py">
|
||||
<provider selected="true" editor-type-id="text-editor">
|
||||
<state relative-caret-position="254">
|
||||
<caret line="75" column="20" selection-start-line="75" selection-start-column="20" selection-end-line="75" selection-end-column="20" />
|
||||
<state relative-caret-position="405">
|
||||
<caret line="75" column="42" lean-forward="true" selection-start-line="75" selection-start-column="42" selection-end-line="75" selection-end-column="42" />
|
||||
<folding>
|
||||
<element signature="e#0#11#0" expanded="true" />
|
||||
</folding>
|
||||
@ -50,8 +49,8 @@
|
||||
<file pinned="false" current-in-tab="false">
|
||||
<entry file="file://$PROJECT_DIR$/../../../DigitalFilter.py">
|
||||
<provider selected="true" editor-type-id="text-editor">
|
||||
<state relative-caret-position="61">
|
||||
<caret line="16" selection-start-line="16" selection-end-line="16" />
|
||||
<state relative-caret-position="759">
|
||||
<caret line="32" lean-forward="true" selection-start-line="32" selection-end-line="32" />
|
||||
<folding>
|
||||
<element signature="e#0#47#0" expanded="true" />
|
||||
</folding>
|
||||
@ -127,7 +126,7 @@
|
||||
</list>
|
||||
</option>
|
||||
</component>
|
||||
<component name="ProjectFrameBounds" extendedState="6">
|
||||
<component name="ProjectFrameBounds" extendedState="7">
|
||||
<option name="x" value="-8" />
|
||||
<option name="y" value="-8" />
|
||||
<option name="width" value="1696" />
|
||||
@ -163,7 +162,7 @@
|
||||
</list>
|
||||
</option>
|
||||
</component>
|
||||
<component name="RunManager" selected="Python.TinnitusAnalyse_GUI">
|
||||
<component name="RunManager" selected="Python.DigitalFilter (1)">
|
||||
<configuration name="DigitalFilter (1)" type="PythonConfigurationType" factoryName="Python" temporary="true">
|
||||
<module name="TinnitusAnalyse" />
|
||||
<option name="INTERPRETER_OPTIONS" value="" />
|
||||
@ -271,8 +270,8 @@
|
||||
</configuration>
|
||||
<recent_temporary>
|
||||
<list>
|
||||
<item itemvalue="Python.TinnitusAnalyse_GUI" />
|
||||
<item itemvalue="Python.DigitalFilter (1)" />
|
||||
<item itemvalue="Python.TinnitusAnalyse_GUI" />
|
||||
<item itemvalue="Python.SoundGenerator" />
|
||||
<item itemvalue="Python.DigitalFilter" />
|
||||
<item itemvalue="Python.Noise Experiment" />
|
||||
@ -365,33 +364,33 @@
|
||||
</entry>
|
||||
<entry file="file://$PROJECT_DIR$/../../../DigitalFilter.py">
|
||||
<provider selected="true" editor-type-id="text-editor">
|
||||
<state relative-caret-position="61">
|
||||
<caret line="16" selection-start-line="16" selection-end-line="16" />
|
||||
<state relative-caret-position="759">
|
||||
<caret line="32" lean-forward="true" selection-start-line="32" selection-end-line="32" />
|
||||
<folding>
|
||||
<element signature="e#0#47#0" expanded="true" />
|
||||
</folding>
|
||||
</state>
|
||||
</provider>
|
||||
</entry>
|
||||
<entry file="file://$PROJECT_DIR$/TinnitusAnalyse_GUI.py">
|
||||
<provider selected="true" editor-type-id="text-editor">
|
||||
<state relative-caret-position="398">
|
||||
<caret line="299" lean-forward="true" selection-start-line="299" selection-end-line="299" />
|
||||
<folding>
|
||||
<element signature="e#0#117#0" expanded="true" />
|
||||
</folding>
|
||||
</state>
|
||||
</provider>
|
||||
</entry>
|
||||
<entry file="file://$PROJECT_DIR$/SoundGenerator.py">
|
||||
<provider selected="true" editor-type-id="text-editor">
|
||||
<state relative-caret-position="254">
|
||||
<caret line="75" column="20" selection-start-line="75" selection-start-column="20" selection-end-line="75" selection-end-column="20" />
|
||||
<state relative-caret-position="405">
|
||||
<caret line="75" column="42" lean-forward="true" selection-start-line="75" selection-start-column="42" selection-end-line="75" selection-end-column="42" />
|
||||
<folding>
|
||||
<element signature="e#0#11#0" expanded="true" />
|
||||
</folding>
|
||||
</state>
|
||||
</provider>
|
||||
</entry>
|
||||
<entry file="file://$PROJECT_DIR$/TinnitusAnalyse_GUI.py">
|
||||
<provider selected="true" editor-type-id="text-editor">
|
||||
<state relative-caret-position="395">
|
||||
<caret line="99" lean-forward="true" selection-start-line="99" selection-end-line="99" />
|
||||
<folding>
|
||||
<element signature="e#0#117#0" expanded="true" />
|
||||
</folding>
|
||||
</state>
|
||||
</provider>
|
||||
</entry>
|
||||
</component>
|
||||
</project>
|
||||
98
TinnitusAnalyse/DigitalFilterTest.py
Normal file
98
TinnitusAnalyse/DigitalFilterTest.py
Normal file
@ -0,0 +1,98 @@
|
||||
import matplotlib.pyplot as plt # For plotting
|
||||
from math import sin, pi, cos # For generating input signals
|
||||
import numpy as np
|
||||
import sys # For reading command line arguments
|
||||
|
||||
|
||||
fs = 44100 # sampling frequency (Abtastfrequenz)
|
||||
|
||||
koeff = {
|
||||
"b0": 0,
|
||||
"b1": 0,
|
||||
"b2": 0,
|
||||
"a1": 0,
|
||||
"a2": 0
|
||||
}
|
||||
|
||||
|
||||
def koeffizienten_berechnen(omega, r):
|
||||
# Koeffizientenberechnung nach Tobola VL S.107 - IIR Filter, 2. Ordnung
|
||||
koeff["b0"] = 1
|
||||
koeff["b1"] = 0
|
||||
koeff["b2"] = -1
|
||||
koeff["a1"] = -2*r*cos(omega)
|
||||
koeff["a2"] = r**2
|
||||
|
||||
|
||||
def filter(x):
|
||||
y = [0]*len(x)
|
||||
for k in range(4, len(x)):
|
||||
y[k] = koeff["b0"]*x[k] + koeff["b1"]*x[k-1] + koeff["b2"]*x[k-2] - koeff["a1"]*y[k-1] - koeff["a2"]*y[k-2]
|
||||
|
||||
return y
|
||||
|
||||
|
||||
|
||||
|
||||
dauer_ms = 10000 # 10 Sekunden
|
||||
num_samples = dauer_ms * (fs / 1000) # framerate -pro Sekunde- umgerechnet in -pro Millisekunde-
|
||||
|
||||
t = np.linspace(0, 10, int(num_samples)) # array zum darstellen der x-Achse
|
||||
amp = 1
|
||||
|
||||
f_input1 = 1
|
||||
f_input2 = 50
|
||||
f_input3 = 10
|
||||
|
||||
input1 = []
|
||||
input2 = []
|
||||
input3 = []
|
||||
for x in range(int(num_samples)): # einen einfachen Sinus ins array schreiben
|
||||
input1.append(amp * sin(2 * pi * f_input1 * (x / fs)))
|
||||
input2.append(amp * sin(2 * pi * f_input2 * (x / fs)))
|
||||
#input3.append(amp * sin(2 * pi * f_input3 * (x / fs)))
|
||||
|
||||
|
||||
input_ges = np.add(input1, input2) # Sinus aufaddieren um ein halbwegs realistisches Audiosignal zu bekommen
|
||||
#input_ges = np.add(input_ges, input3)
|
||||
|
||||
#Filterparameter hier einstellen
|
||||
fr = 5
|
||||
omega = 2*pi*fr/fs
|
||||
r = 0.95
|
||||
koeffizienten_berechnen(omega, r) # Koeffizienten berechnen mit Mittelfrequenz 10Hz
|
||||
|
||||
output = filter(input_ges)
|
||||
|
||||
### Plot the signals for comparison
|
||||
plt.figure(1)
|
||||
plt.subplot(231)
|
||||
plt.ylabel('Amplitude')
|
||||
plt.xlabel('t [s]')
|
||||
plt.title('f_1=' + str(f_input1) + "Hz")
|
||||
plt.plot(t, input1)
|
||||
|
||||
plt.subplot(232)
|
||||
plt.ylabel('Amplitude')
|
||||
plt.xlabel('t [s]')
|
||||
plt.title('f_2=' + str(f_input2) + "Hz")
|
||||
plt.plot(t, input2)
|
||||
|
||||
# plt.subplot(233)
|
||||
# plt.ylabel('Amplitude')
|
||||
# plt.xlabel('t [s]')
|
||||
# plt.title('f_3=' + str(f_input3) + "Hz")
|
||||
# plt.plot(t, input3)
|
||||
|
||||
plt.subplot(234)
|
||||
plt.ylabel('Amplitude')
|
||||
plt.xlabel('t [s]')
|
||||
plt.title('(input in Filter) f_ges = f_1 + f_2')
|
||||
plt.plot(t, input_ges)
|
||||
|
||||
plt.subplot(235)
|
||||
plt.ylabel('Amplitude')
|
||||
plt.xlabel('Samples')
|
||||
plt.title('gefiltertes Signal, mit f_r = ' + str(fr) + "Hz und r=" + str(r))
|
||||
plt.plot(t, output)
|
||||
plt.show()
|
||||
@ -74,7 +74,7 @@ class Sound:
|
||||
# zuerst muss ein Array mit Audiodaten gefüllt werden
|
||||
audio = []
|
||||
freq = self.tinnitus.linksFrequenz
|
||||
dauer_ms = 1000.0 # 10 Sekunden
|
||||
dauer_ms = 5000.0 # 10 Sekunden
|
||||
amp = self.tinnitus.linksLautstaerke
|
||||
rauschen = self.tinnitus.linksRauschenLautstaerke
|
||||
|
||||
|
||||
@ -1,10 +1,10 @@
|
||||
Vorname;asd
|
||||
Nachname;asda
|
||||
linke Frequenz;770.0
|
||||
linke Lautstärke;0.01
|
||||
Vorname;asdas
|
||||
Nachname;asdas
|
||||
linke Frequenz;0.0
|
||||
linke Lautstärke;0.0
|
||||
linkes Rauschen;0.0
|
||||
rechte Frequenz;1410.0
|
||||
rechte Lautstärke;0.03
|
||||
rechte Frequenz;0.0
|
||||
rechte Lautstärke;0.0
|
||||
rechtes Rauschen;0.0
|
||||
Kommentar;asd
|
||||
Kommentar;asdas
|
||||
|
||||
|
||||
|
Binary file not shown.
Loading…
x
Reference in New Issue
Block a user