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Created September 24, 2012 16:53
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Converting MP3 to PCM A-law
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There are many ways to do this, you can use:

  • FFMpeg
  • Gstreamer
  • lame
  • MPG123
  • Sox
  • Mplayer

Here is one example: Converting sample.mp3 to 8KHz sample rate PCM/16 file.

$ mplayer -af resample=8000,channel=1 -ao pcm:waveheader:file="filename.wav" sample.mp3

Then use SOX to convert PCM/16 to PCM A-law

$ sox filname.wav -e a-law filename_alaw.wav

Now you can use filename_alaw.wav for streaming.

@kiquenet
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how-to convert mp3, m4a or aac file to wav A-Law, 8000Hz, 64kbps, mono?

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