[LAU] linux compatible USB Audio Interface

david gnome at hawaii.rr.com
Fri Aug 9 09:46:35 UTC 2013

Hmm - blacklist the wifi drivers? I understand that even when you're not 
connected, they will still regularly scan for signals. I understand this 
can take time and is not RT-friendly at all.

I have a dual-core netbook (non-RT kernel, it's borrowed). During the 
day, it sits on my desk at work and plays music from a USB drive thru my 
UCA-202 USB soundcard. When I close up at the end of the day, JACK will 
show 9-11 xruns.

On 08/08/2013 11:09 PM, jwind wrote:
> just for completeness:
> after checking out the scarlett 18i8 with another system (a
> dual-core-netbook)
> i have some not so nice drop-outs in playback, which not seem to be related
> to any latency settings. (-
> tried to debug a bit, but could not find any errors in kernel- or device
> logs;
> does anyone know a good practice how to filter this?
> thanks james for that hint.
> j ,.
> On 08.08.2013 20:59, Victor A. Stoichita wrote:
>> On 8 August 2013 00:51, Danni Coy <danni.coy at gmail.com
>> <mailto:danni.coy at gmail.com>> wrote:
>>     the Komplete Audio 6 is plug and play on Linux. It 4 inputs though
>>     only two have preamps and is bus powered. The bundled native
>>     instruments software will run under wine as a windows VST which is
>>     a bonus.
>> Interesting! I'm also loking  for a USB 2 interface and the KA6 seems
>> to fit my needs. It is advertised as being capable of very low
>> latencies. Did you have any experience of this on linux ?
>> Regards,
>> Victor
>>     On Thu, Aug 8, 2013 at 4:38 AM, James Stone <jamesmstone at gmail.com
>>     <mailto:jamesmstone at gmail.com>> wrote:
>>         On Tue, Aug 6, 2013 at 3:42 PM, William Light <wrl at illest.net
>>         <mailto:wrl at illest.net>> wrote:
>>         > occhi,
>>         > any particular reason you want an interface with a separate
>>         power plug?
>>         > USB bus power will do most of what you want.
>>         >
>>         > personally, i currently have a focusrite scarlett 2i2, and
>>         the 2i4 may
>>         > suit your needs. the 2i2 is good, sounds fine, good latency.
>>         >
>>         I have a 2i4 - it only has 2 inputs though (as the name
>>         suggests). It
>>         is an excellent device overall, but I have been having some
>>         serious
>>         teething troubles with kernel releases over 3.5. I am
>>         providing bug
>>         reports to the kernel devs and these problems (not being able
>>         to start
>>         at low latencies, audio system locking up) seem to be slowly being
>>         addressed, but performance is not quite there yet for me, and
>>         I would
>>         suggest if you decided to get one of these devices, and are
>>         affected
>>         by these bugs, you might experience less pain using the
>>         earlier 3.5
>>         series kernels for now. I think that this problem is not just
>>         limited
>>         to the scarlett devices, and that other USB audio devices may be
>>         similarly affected. Also, I think these issues may also be
>>         USB-hardware (or BIOS?) dependent, so some people with the
>>         same kernel
>>         and audio device may not experience the same bugs.
>>         James

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