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

[fykcee1 at gmail.com]

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?

BTW,
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?


-- 
Regards,

- cee1