[LAU] linux compatible USB Audio Interface

david gnome at hawaii.rr.com
Fri Aug 9 19:58:36 UTC 2013

You're welcome!

On 08/09/2013 07:30 AM, jwind wrote:
> --> bingo; running now for 1,5 hour with no underruns;
> had this issue years ago, too... thought with stronger cpus this
> supposed to be history; but it isn`t.
> now i know. thanks a lot
> cheers
> j ,.
> On 09.08.2013 11:46, david wrote:
>> 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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