[linux-audio-user] record from the monitor mixer on ice1712?

Thomas Kuther gimpel at sonnenkinder.org
Fri Feb 9 11:31:15 EST 2007


On Fr, 09.02.07 17:13 Thomas Kuther <gimpel at sonnenkinder.org> wrote:

> On Fr, 09.02.07 08:26 Garett Shulman <shulmang at colorado.edu> wrote:
> 
> > Thomas Kuther wrote:
> > > On Fr, 09.02.07 09:13 Joel Roth <joelz at pobox.com> wrote:
> > >
> > >   
> > >> On Thu, Feb 08, 2007 at 07:26:01PM +0100, Thomas Kuther wrote:
> > >>     
> > >>> Hello LAUs,
> > >>>
> > >>> maybe someone here knows how I can record from an ICE1712's
> > >>> Monitor Mixer using ALSA? I routed the HW in 1/2 to the digital
> > >>> mixer in envy24control, and now I want to record that, but I'm
> > >>> perhaps just too stupid to find out how the monitor mixer is
> > >>> called in ALSA. 
> > The Monitor Mixer outputs should be available as inputs 11 & 12.
> 
> Hmm, looking at the envy24 datasheet, yes (that says something about
> DMA channels 11 & 12). And maybe that's the point where I do not get
> it. How do I access those using arecord for example?
> 
> I could imagine something like "monitor" in aplay --list-pcms, but
> there is nothing like that. Maybe I have to create and assign them
> first?
> 

Bingo! Thanks guys for slowly pointing me to the right direction. 
This + a stumble over http://alsa.opensrc.org/1712_.asoundrc#2003-09-18
lead to this:

pcm.ice1712 {
    type hw
    card 0
    device 0
}

pcm.monitor {
    type plug
    ttable.0.10 1 # digital mix left
    ttable.1.11 1 # digital mix right
    slave.pcm ice1712
}

Et voila 'qarecord --device monitor'

Cheers,
Tom

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