[alsa-devel] Alsamixer-Qt4 0.4.0 released

[Raymond Yau]

2010/8/6 Sebastian H. <vand2 at gmx.de>

>
> > EQ Peaks is a  volatile control without write access  (i.e. you cannot
> use
> > slider since you cannot modify the value ) which provide the peak of  10
> > bands (31Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1Kz, 2Kz, 4Kz, 8Kz , 16Kz) stereo
> > channels of the au8830's hardware equalizer  ,  ( one stereo vu-meters at
> > each band )
> >
> > The values are ordered  by left channel of 10 bands followed by right
> > channel of 10 bands
> >
> >
> >  control.12 {
> >         comment.access read
> >         comment.type INTEGER
> >         comment.count 20
> >         comment.range '0 - 32767'
> >         iface MIXER
> >         name 'EQ Peaks'
> >         value.0 1
> >         value.1 1
> >         value.2 0
> >         value.3 0
> >         value.4 1
> >         value.5 1
> >         value.6 1
> >         value.7 1
> >         value.8 0
> >         value.9 0
> >         value.10 1
> >         value.11 1
> >         value.12 0
> >         value.13 0
> >         value.14 0
> >         value.15 0
> >         value.16 1
> >         value.17 1
> >         value.18 0
> >         value.19 0
> >     }
>
> Where do you get this listing from?
> I greped through the alsa source but did not find it.
> Is it an amixer output or so?
>

it is the content of file produced by "alsactl store -f  abc.txt"

alsactl is an alsa-util which store/restore the setting of the sound cards
when you logout/login or the system is shutdown/boot

BTW , it seem that the slider cannot individually control left or right
channels volume

How about selecting other CTL devices such as pulse (alsa-pulse plugin) or
equal ( alsa-equalizer plugin )