linuxaudio.org

On 05/15/2012 06:31 AM, Robin Gareus wrote:

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> On 05/15/2012 02:36 PM, Fons Adriaensen wrote:

>> On Tue, May 15, 2012 at 12:40:34PM +0200, Robin Gareus wrote:

>>> On 05/15/2012 12:33 PM, Paul Davis wrote:

>>>> I don't see any evidence that this is a class compliant USB 2.0

>>>> device. As such it seems unlikely to be usable on Linux. This is the

>>>> first question you need to resolve.

>>>

>>> The VSL1818 works OOTB with ALSA>= 1.0.24.

>>

>> Does that include configuration settings (sample rate, clock source,

>> etc.) which are apparently only SW controlled ?

>

> clock-sources: yes. they're exposed by alsa-mixer.

> In fact it's a bit of a hassle because they all default to 'external';

> but nothing a amixer script can't fix (maybe with OSX or Win one can

> write new power-on defaults to the box and even reverse engineer to the

> protocol).

>

> sample-rate: don't know. -- good call. I'll check that.

>

> I'm about to get a ssh-login to a debian box with a 1818VSL connected.

> So I can poke around before ordering. I've asked to patch an output to

> an input so that I can run jack_delay.. -- will report back later. Alas

> the box will be ~5500 miles away so I can't play with the hardware itself.

Please keep us updated!
> I'm still curious what others think about the device in general or if

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> anyone has hands-on experience with it.

The best I've had an experience with has been the Edirol UA-101,

regretfully no longer made. You have to manually change the sampling

rate with a switch and power cycle it but it does work very well under

linux.
I'm also looking for an 8 channel USB2 soundcard. I have been trying out

an Maudio Fast Track Ultra 8R but I can get it to work reliably below

256x2 and even then I see xruns from time to time (this under kernel

3.2.x-rt). So I can't recommend it.
-- Fernando

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