How to join two wav file using python??

Question

I am using python programming language,I want to join to wav file one at the end of other wav file? I have a Question in the forum which suggest how to merge two wav file i.e add the contents of one wav file at certain offset,but i want to join two wav file at the end of each other...

And also i had a prob playing the my own wav file,using winsound module..I was able to play the sound but using the time.sleep for certain time before playin any windows sound,disadvantage wit this is if i wanted to play a sound longer thn time.sleep(N),N sec also,the windows sound wil jst overlap after N sec play the winsound nd stop..

Can anyone help??please kindly suggest to how to solve these prob...

Thanks in advance

Answer 1

You could use audiolab:

import audiolab, scipy
a, fs, enc = audiolab.wavread('file1.wav')
b, fs, enc = audiolab.wavread('file2.wav')
c = scipy.vstack((a,b))
audiolab.wavwrite(c, 'file3.wav', fs, enc)

Answer 2

i use the SOX [1] library and then call it like

>>> import subprocess
>>> sound_output_path = /tmp
>>> sox_filenames = ['file.wav', 'file1.wav']
>>> subprocess.call(['sox'] + sox_filenames + ['%s/out.wav' % sound_output_path])

[1] http://sox.sourceforge.net/

Answer 3

Python ships with the wave module that will do what you need. The example below works when the details of the files (mono or stereo, frame rates, etc) are the same:

import wave

infiles = ["sound_1.wav", "sound_2.wav"]
outfile = "sounds.wav"

data= []
for infile in infiles:
    w = wave.open(infile, 'rb')
    data.append( [w.getparams(), w.readframes(w.getnframes())] )
    w.close()

output = wave.open(outfile, 'wb')
output.setparams(data[0][0])
output.writeframes(data[0][1])
output.writeframes(data[1][1])
output.close()