vid_to_wav.py

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)