I am unable to play mu-law files. If I try
aplay file.wav
I get the error message
aplay: test_wavefile:726: can't play not PCM-coded WAVE-files
I get the same error if I try, e.g., aplay -f MU_LAW file.wav.
I've tried to define an .asoundrc entry, but I get similar errors.
Furthermore I find that VoIP applications such as Kphone and Twinkle are
unable to play mu-law data streams -- I have to use OSS compatibility mode.
Questions:
(1) Is there some problem with MU-LAW in the latest version of Alsa? I'm
using Debian 2.6.15-1-k7 on an ASUS via82xx-based mobo.
(2) Can someone provide a complete example of how to create a plugin for
Alsa, and how it would be used? I have read the documentation, which
says that "type mulaw" can translate from linear to mu-law and back --
but there's no hint whatsoever on how to accomplish either of those
anywhere in the documentation.
As far as I can tell, it should be possible to use .asoundrc and alsa so
that aplay would automatically play either a linear or mu-law encoded
file. But I can't tell how.
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