How can I convert audio files to this format?

I have a bunch of audio files that are named .wav but it seems not all .wavs are created equal. For example:

$ file *
file1.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 44100 Hz
file2.wav: Audio file with ID3 version 2.2.0, contains: MPEG ADTS, layer III, v1, 160 kbps, 44.1 kHz, JntStereo
file3.wav: Claris clip art?
file4.wav: Audio file with ID3 version 2.2.0, contains: MPEG ADTS, layer III, v1, 160 kbps, 44.1 kHz, JntStereo

And for good measure, a non-wav:

file5.m4a: ISO Media, MPEG v4 system, iTunes AAC-LC

I would like to convert all of these files to the format that file1.wav is:

RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, stereo 44100 Hz

What is the proper set of arguments to pass to afconvert to make that happen?

jeffamaphone

Posted 2012-10-31T16:13:39.343

Reputation: 389

Answers

Your file2.wav and file4.wav are .mp3 files

maybe you should separate them by type first and then try the conversion from the different types to real .wav (PCM uncompressed)

i believe you cand find a tutorial here: http://blog.bitcomet.com/post/103259/

If you really MUST use afconvert, make sure that your files have the proper extensions for their format.

Calin

Posted 2012-10-31T16:13:39.343

Reputation: 41

Well, I have a lot and more will come so it needs to be automatable. I was using afconvert because its a command line tool and its there. If there is a better tool I'd happily use it. But GUI tools (I looked at another one that was on the Vorbis wiki—I forget the name) are not going to work. – jeffamaphone – 2012-10-31T16:54:38.233

try something like this then http://stackoverflow.com/questions/1271354/how-do-i-use-afconvert-to-convert-all-the-files-in-a-directory-from-wav-to-caf

– Calin – 2012-10-31T16:58:14.210