S. Massy wrote:
> On Fri, Sep 16, 2011 at 02:11:35PM -0400, Paul Davis wrote:
>> On Fri, Sep 16, 2011 at 2:02 PM, S. Massy <lists@email-addr-hidden> wrote:
>>> On Fri, Sep 16, 2011 at 01:33:42PM -0400, Paul Davis wrote:
>>>> if you can run a USB 1 class compliant audio device on your linux
>>>> system with lower latency than the current minimum so far posted to
>>>> this thread, please post with the settings you use and the type of
>>>> device. if your best performance has already been posted, no need to
>>>> repeat it.
>>>>
>>>> i'll get the ball rolling with 2048 frames. note that we are assuming
>>>> 2 channels only, but duplex mode (simultaneous capture+playback).
>>> Pardon my obtuseness, but... Well, are we talking frames per period, as
>>> in the -p option in jack's audio driver?
>> in JACK terms, the combination of:
>>
>> * sample rate
>> * period size (frames per period)
>> * number of periods (periods per buffer)
> With my Roland UA25EX I can run JACK with -r48000 -p64 -n3 without any
> xruns or stability issue. Anything lower gets dicey.
64 msec latency is best I can do with my UCA202, -r48000 -p1024 -n3, but
not 2-way (that's playback only), on non-RT kernel. Recording doesn't
work through JACK at the moment, error message says something about
impossible sample size.
-- David gnome@email-addr-hidden authenticity, honesty, community _______________________________________________ Linux-audio-user mailing list Linux-audio-user@email-addr-hidden http://lists.linuxaudio.org/listinfo/linux-audio-userReceived on Sun Sep 18 00:15:03 2011
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