added file for audio modality

vid_to_wav.py

@@ -0,0 +1,44 @@
+import subprocess
+import os
+import zipfile
+
+## Runnin a loop throught all the zipped training file to extract all .wav audio files
+for i in range(1,76):
+    if i<10:
+        zipfilename = 'training80_0'+str(i)+'.zip'
+    else:
+        zipfilename = 'training80_'+str(i)+'.zip'
+    ## Accessing the zipfile i
+    archive = zipfile.ZipFile('data/'+zipfilename, 'r')
+    zipfilename = zipfilename.split('.zip')[0]
+    #archive.extractall('unzippedData/'+zipfilename)
+    for file_name in archive.namelist():
+        file_name=(file_name.split('.mp4'))[0]
+        try:
+            if not os.path.exists('VoiceData/trainingData/'):
+                os.makedirs('VoiceData/trainingData/')
+        except OSError:
+            print ('Error: Creating directory of data')
+        command = "ffmpeg -i unzippedData/{}/{}.mp4 -ab 320k -ac 2 -ar 44100 -vn VoiceData/trainingData/{}.wav".format(zipfilename,file_name,file_name)    
+        subprocess.call(command, shell=True)
+
+for i in range(1,26):
+    if i<10:
+        zipfilename = 'validation80_0'+str(i)+'.zip'
+    else:
+        zipfilename = 'validation80_'+str(i)+'.zip'
+    ## Accessing the zipfile i
+    archive = zipfile.ZipFile('data/'+zipfilename, 'r')
+    zipfilename = zipfilename.split('.zip')[0]
+    #archive.extractall('unzippedData/'+zipfilename)
+    for file_name in archive.namelist():
+        file_name=(file_name.split('.mp4'))[0]
+        try:
+            if not os.path.exists('VoiceData/validationData/'):
+                os.makedirs('VoiceData/validationData/')
+        except OSError:
+            print ('Error: Creating directory of data')
+        command = "ffmpeg -i unzippedData/{}/{}.mp4 -ab 320k -ac 2 -ar 44100 -vn VoiceData/validationData/{}.wav".format(zipfilename,file_name,file_name)    
+        subprocess.call(command, shell=True)
+
+