[linux-audio-dev] Please help: 16-channel recording w/ LAYLA, ALSA, JACK, ARDOUR

John Check j4strngs at bitless.net
Wed Apr 12 04:01:56 UTC 2006


On Tuesday 11 April 2006 07:04 pm, Lance Blisters wrote:
> I bought a Layla24 and Cardbus adaptor.  Works beatifully with
> ALSA/JACK/ARDOUR up to 8 channels.  However, the soundcard presents the 8
> analog channels as device 0 and 8 digital channels as device 1.  JACK will
> only open one device at a time.  So in order to record and play back 16
> channels with Ardour, I apparently need to create a virtual ALSA device
> combining the two LAYLA subdevices.
>
> Which brings me back to a place I always find myself when working with new
> sound gear - ALSA LIMBO, a dark claustrophobic space occupied only by
> unidentified .asoundrc fragments, paved with device anomolies, mined with
> disinformation bomblets, seen through the funhouse mirrors of fruitless
> google sessions.  Cascades of similar plugin types of indeterminate
> direction, each encased in the next like a 12-step turducken, translated
> through an inconsistent mix of multiple (equivalent?) syntaxes, with the
> smallest deviation producing a cryptic failure. A breadcrumb trail of
> trials and errors spirals back further than I can see, and the only sounds
> I can hear over the queasy rumblings building in my stomach, is me
> repeating to myself that OF COURSE it is possible, I can't be the ONLY
> person to try to use all channels with JACK, and if I just dig through
> another 10 pages of search results i'll surely find a .asoundrc which
> solves the whole thing for me.
>
> And then I wake, throat hoarse, sticky with fever sweat, to apply ice to my
> forehead and plaster to the fresh hole in my wall.  And I beg of you,
> someone, please, for the love of all that is holy, just give me the damn
> answer so i can get on with my life.  And not a "use the multi plugin"
> answer, because THAT IS NO ANSWER, THAT IS ONLY A TAUNT.  An actual,
> complete .asoundrc which has actually worked in practice, with .ctl, mmap,
> exclusivity, #channels, etc accounted for.  The kind which saves me literal
> hours of very literal frustration.
>
> Thanks in advance,
>
>   -geoff

I hate when that happens!



More information about the Linux-audio-dev mailing list