[alsa-devel] ac97 Master and PCM volume control

Raymond Yau superquad.vortex2 at gmail.com
Sat Jun 12 03:37:45 CEST 2010


>> Master ranges from -46.5dB to 0dB but PCM ranges from -34.5dB to +12dB,

Daniel T Chen <https://launchpad.net/%7Ecrimsun> wrote on 2010-05-18:
 This is not a pulse bug but a hardware one

I wonder why you said this is a hardware bug since this is ac97

maximum the total gain will be +12dB, not 0dB as indicated.

Did you read those ac97 2.x specification ?

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