[linux-audio-user] USB audio?

Patrick Shirkey pshirkey at boosthardware.com
Sat Sep 28 05:49:00 EDT 2002


Christian Schoenebeck wrote:
> Es geschah am Samstag, 28. September 2002 00:39 als m schrieb:
> 
>>hi all
>>
>>just wondering what USB audio devices, if any, are compatible with
>>gnu/linux ?...
>>
>>im thinking of using USB audio with my laptop... better quality and more
>>outputs etc....
> 
> 
> I would only look for devices that are mentioned here:
> 
> 	http://www.alsa-project.org/~goemon/
> 
  	
that should be

	http://www.alsa-project.org/alsa-docs/

the geomon page is not being updated anymore and has been reinvented to 
be the homepage for the online docs.

> I'm not sure if you can expect too much from USB audio devices. USB 1.x is 
> too slow and I often heard that USB causes timing problems. Personaly, I'm 
> considering to buy a Echo Layla 24 (as I already posted) - you can use it 
> with a PCI or PCMCIA card, has a high audio quality, low latency and you've 
> got a lot of in- and ouputs (balanced analog, S/PDIF, ADAT, Wordclock, MIDI).
> 

I use a maudio quattro and we are having good success with the driver. 
Currently  you can use all four channels for playback and recording 
seperately.  I have successfully recorded a stereo stream for 2 hours 
without dropouts with this device.

It works with JACK too although it is experimental and not complete.

As long as the manufacturers make it compliant with the generic code it 
is currently supported in ALSA. If is is not compliant it can be fixed 
if you are prepared to debug.




-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
========================================

"Um...symbol_get and symbol_put... They're
kindof like does anyone remember like get_symbol
and put_symbol I think we used to have..."
- Rusty Russell in his talk on the module subsystem




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