[PlanetCCRMA] Intel HDA and Alsa/Jack

Fernando Lopez-Lezcano nando at ccrma.Stanford.EDU
Tue Jan 29 10:32:00 2008

On Mon, 2008-01-28 at 13:38 -0800, pyrael wrote:
> Ok, ok, I know that onboard is a bad thing, but until I can afford that
> pretty little M-Audio 1010LT, I'm stuck with this. Besides, It will do 24
> bit at 192k (I stick with with 24 at 44.1 myself). 
> Here's the question:
> In the mixer for the HDA (RTL ALC 882), it shows me 4 capture sliders which
> are assignable via the options tab.
> Recording tab:
> Capture, Capture 1, Capture 2, and  Digital
> Options Tab:
> Input Source: Mic, Front Mic, Line, CD
> Input Source: Mic, Front Mic, Line, CD
> Input Source: Mic, Front Mic, Line, CD
> I set them so that they looked like this:
> Input Source: Mic
> Input Source: Front Mic
> Input Source: Line
> and assumed that I would be able to capture audio from any of them
> In qjackctrl on the connection box, It shows alsa but with only two
> connections, 1(L) and 2(R). 
> Is there a way that I can force something to make 4 or 6 connections to
> alsa? or is this the limitations of my sound card?
> Basically, I'd like to be able to connect Mic, Front Mic and line to
> rosegarden and record 4-6 tracks simultaneously.

Sorry, it would look like the hardware design of your card does not
allow for that. 

The mixer you see is (probably) before the analog to digital converter
and mixes the sources in the analog domain. Then the output of the a/d
is sent to the computer as a stereo pair...

Just in case you could look at "cat /proc/asound/devices" just to see if
the card has any subdevices that provide more channels but I doubt
that's the case. 

-- Fernando