joining 2 mixer ports with .asoundrc?

joining 2 mixer ports with .asoundrc?

[Harald Gutmann]

hello!

i've here a m-audio 1010lt with an ice1712 chip.
on this card, there is no pcm mixer channel per default, but i think it 
should be possible to add on in the .asoundrc file.

the problem is, that the documentation about the ctl.NAME is verry barely.
in the alsa wiki/documentation i only find the:

ctl.NAME {
type hw
card 0
}

but i'd like to create a mixer which is called pcm (at the moment a 
mixer with that name doesn't exist),
and this mixer should join the mixer DAC1 and the DAC2 to one mixxer, 
called pcm.

what has to be insert in the .asoundrc, to get this working?
any hint on a documentation/newsgrouppost/maillinglistarchive for 
controlling mixer devices in the .asoundrc?


best regards,
harald gutmann

ps: i post it also in the deve-list, because in the user list, it seems 
that nobody knows whow it works, eg. what i want. :)

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Re: joining 2 mixer ports with .asoundrc?

[John Rigg]

On Fri, Sep 01, 2006 at 03:24:30PM +0200, Harald Gutmann wrote:
> hello!
> 
> i've here a m-audio 1010lt with an ice1712 chip.
> on this card, there is no pcm mixer channel per default, but i think it 
> should be possible to add on in the .asoundrc file.

You shouldn't need to set this up in .asoundrc. The 1010LT has a very
good mixer available for it: envy24control from alsa-tools. You can set
up the card with this and the settings will usually be restored on reboot
(depending on how your distro works).

John

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Re: joining 2 mixer ports with .asoundrc?

[Takashi Iwai]

At Fri, 1 Sep 2006 18:47:34 +0100,
John Rigg wrote:
> 
> On Fri, Sep 01, 2006 at 03:24:30PM +0200, Harald Gutmann wrote:
> > hello!
> > 
> > i've here a m-audio 1010lt with an ice1712 chip.
> > on this card, there is no pcm mixer channel per default, but i think it 
> > should be possible to add on in the .asoundrc file.
> 
> You shouldn't need to set this up in .asoundrc. The 1010LT has a very
> good mixer available for it: envy24control from alsa-tools. You can set
> up the card with this and the settings will usually be restored on reboot
> (depending on how your distro works).

Right.  But apart from that, a combined mixer is actually an
interesting topic.

Unfortunately, there is no framework for the combined mixer elements
(unlike PCM) right now.  In theory, this could be implemented via
alsa-lib mixer plugin.


Takashi

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Re: joining 2 mixer ports with .asoundrc?

[Harald Gutmann]

Takashi Iwai schrieb:
> At Fri, 1 Sep 2006 18:47:34 +0100,
> John Rigg wrote:
>   
>> On Fri, Sep 01, 2006 at 03:24:30PM +0200, Harald Gutmann wrote:
>>     
>>> hello!
>>>
>>> i've here a m-audio 1010lt with an ice1712 chip.
>>> on this card, there is no pcm mixer channel per default, but i think it 
>>> should be possible to add on in the .asoundrc file.
>>>       
>> You shouldn't need to set this up in .asoundrc. The 1010LT has a very
>> good mixer available for it: envy24control from alsa-tools. You can set
>> up the card with this and the settings will usually be restored on reboot
>> (depending on how your distro works).
>>     
yes, i know the envy24control, and it's a really fine mixer application,
but the restoring of the mixer settings on bootup and so on, is not the 
problem.

the goal of combining the first two mixer parts for output,
which are the once i use moste of the time to hear music
(sometimes  i use the 3rd and the 4th for monitoring on my headphones),
is that i've a normal PCM mixer control, which is used by default from 
nearly
every audio application which supports alsa, to have an easy way to 
control the loudness of the output.

>
> Right.  But apart from that, a combined mixer is actually an
> interesting topic.
>
> Unfortunately, there is no framework for the combined mixer elements
> (unlike PCM) right now.  In theory, this could be implemented via
> alsa-lib mixer plugin.
>   
is it planned to add such a framework for combining mixers per .asoundrc?
i think it would be a good idea to add a similar framework like it's 
used to
route audio in the .asoundrc.


best regards,
harald gutmann

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Re: joining 2 mixer ports with .asoundrc?

[Takashi Iwai]

At Sat, 02 Sep 2006 02:09:02 +0200,
Harald Gutmann wrote:
> 
> > Right.  But apart from that, a combined mixer is actually an
> > interesting topic.
> >
> > Unfortunately, there is no framework for the combined mixer elements
> > (unlike PCM) right now.  In theory, this could be implemented via
> > alsa-lib mixer plugin.
> >   
> is it planned to add such a framework for combining mixers per .asoundrc?
> i think it would be a good idea to add a similar framework like it's 
> used to
> route audio in the .asoundrc.

No plan, no time :-<

Feel free to implement it by yourself...


Takashi

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Re: joining 2 mixer ports with .asoundrc?

[Harald Gutmann]

Takashi Iwai schrieb:
> At Sat, 02 Sep 2006 02:09:02 +0200,
> Harald Gutmann wrote:
>   
>>> Right.  But apart from that, a combined mixer is actually an
>>> interesting topic.
>>>
>>> Unfortunately, there is no framework for the combined mixer elements
>>> (unlike PCM) right now.  In theory, this could be implemented via
>>> alsa-lib mixer plugin.
>>>   
>>>       
>> is it planned to add such a framework for combining mixers per .asoundrc?
>> i think it would be a good idea to add a similar framework like it's 
>> used to
>> route audio in the .asoundrc.
>>     
>
> No plan, no time :-<
>
> Feel free to implement it by yourself...
>   
i'd like to do it, but i don't have the knowladge to code.
i'm only a poor user ;).

but fine to know, that it isn't possible at the moment, i don't have to 
invest time in searching. :)

harald

>
> Takashi
>
>
>   


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