[pulseaudio-discuss] Questions about setting volume over "base volume"

fykcee1 at gmail.com fykcee1 at gmail.com
Mon Apr 9 07:05:20 PDT 2012

Hi all,

I found the sound playback quality will become bad if I set volume
over "base volume" in gnome-volume-control.
Why? Does it boost volume by software way in the case of "over base
volume"? If yes, who do the job? PA or alsa?

1. Is base volume calculated from max dB?
2. Is most drivers' playback max dB 0?
3. What is the difference between snd_mixer_selem_set_playback_volume and snd_mixer_selem_set_playback_dB?


- cee1

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