2010/6/22 Colin Guthrie <gmane@xxxxxxxxxxxxxx> > 'Twas brillig, and Raymond Yau at 22/06/10 03:31 did gyre and gimble: > > 2010/6/14 Colin Guthrie <gmane@xxxxxxxxxxxxxx> > >> I've made this change on my system and while previously my UI had no > >> "Base Volume" displayed (because all my "h/w" (I include softvol in > >> that) controls had their dB value >0. > >> > > > > as your card has no h/w gain, > 0dB , but the gain in softvol plugin is > a > > software gain (i.e. in the red region in PA "s volume scale > > > > how can base_volume display in gnome volume control (unamplified) ? > > > > BTW , -46.5dB to 0dB of softvol plugin is software atten ( not h/w atten > ) > > As I said above, anything that comes from alsa is considered h/w > amplification for the purposes of PA's volume scale. It's not practical > to differentiate them Software gain is different from hardware gain. Clipping due to software gain +12dB cannot compensated by -12dB by hardware atten . > > Does any card actually configure softvol, by default, to provide any > gain, > 0dB for outputs? If so, then this is IMO a bad idea. > -51dB to 0dB is also software atten of softvol plugin if PA did not want to differeniate hardware/software gain/atten Just set this softvol PCM to 0dB and use PA 's own software gain/atten or don't use front device for HDA _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
