You might find something on the jack/freebob sites. Specifically, here's a list of devices supported on freebob:

http://freebob.sourceforge.net/index.php/List_of_Supported_Devices

it's NOT alsa though, if you must use that. If you're writing a java app, you can even use jjack to interface jack.

HOWEVER: I'm writing an application that also needs to output up to 8-10 channels, but I also need input. I though the the Terratec Phase 88 solved all my problems combined with jack/freebob, but found to my surprise that the input channels were PASSIVE! That is, unlike ordinary soundcards, you can't use ordinary headset type microphones, I need to preamplify the signal before giving it to to the Terratec rack...

So: anyone knows of any really cheap multichannel preamp? I don't need professional sound, just phone/GSM type quality.

Regards,
Helge Fredriksen

On 8/31/07, Jeromie Clark <jeromie@jeromie.com> wrote:
Hi -

I've been looking around, but I can't seem to find a recommended list of hardware for use with Alsa and multichannel output, and I'm wondering if anyone on the list has hands-on experience with hardware that works reliably in this application.
 
Specifically, I'm looking to drive between 16 separate mono outputs from a single PC, using a custom application that I'll write in either C++ or java. 
 
It looks like alsa allows you to bind multiple consumer-grade cards as a single device for this purpose, although I'm just as happy (and would probably prefer) to buy a rock-solid, purpose-built, commercial-grade piece of hardware.  I'd rather pay a little extra and avoid the nightmarish headache of trying to get long-term consistency out of four soundblasters. 
 
If you're not comfortable endorsing a particular venue or solution on the list, please feel free to mail me directly.
 
Thanks in advance,
Jeromie Clark

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