From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Sebastian H." <vand2@gmx.de>
Subject: Re: Alsamixer-Qt4 0.4.0 released
Date: Thu, 12 Aug 2010 11:27:34 +0200
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To: Raymond Yau <superquad.vortex2@gmail.com>
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List-Id: alsa-devel@alsa-project.org

Am 12.08.2010 03:38, schrieb Raymond Yau:
> 2010/8/6 Sebastian H. <vand2@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

Oh, ok. thx

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

This should be possible in the channel mixer dialog (button on the
sidebar).
I also plan a right-mouse-button menu for each slider which would allow
to open the channel mixer dialog directly.

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

Yes, definitely!
I'll try to implement at least a -D option for the next release.
A ctl selection may be a bit trickier though since some ctl entries may
require arguments.