OSS uses diffrent way to control pcm volume as is used ALSA.

OSS sets AC97 PCM volume to 0 dB or +12 dB (boost) and volume is 
controled by DSP code.

ALSA uses AC97 PCM volume. You have range from -34,5 dB to +12 dB.
If you want PCM volume from range -34,5 dB to 0 dB (this is without 
bost) then use range from 0 to 75 in alsamixer or 0 to 24 in amixer.

Peter Zubaj





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