Воскресенье, 10 января 2016, 22:40 +01:00 от Clemens Ladisch <cladisch@xxxxxxxxxxxxxx>:Ecasound does not use Jack, and I used '-b 1024' on command line. I.e. buffer length in ecasound 1024 samples.
Sergei Steshenko wrote:
>> Пятница, 8 января 2016, 10:14 +01:00 от Clemens Ladisch <cladisch@xxxxxxxxxxxxxx>:
>> Sergei Steshenko wrote:
>>> Понедельник, 4 января 2016, 18:45 +01:00 от Clemens Ladisch < cladisch@xxxxxxxxxxxxxx >:
>>> What is the buffer length of the device?
>>> (see /proc/asound/card*/pcm0p/sub0/hw_params)
>>>
>>> "buffer_size: 262144", and 262144/48000 is about 5.46 seconds - feels about right.
>>
>> The audio device is configured by whatever program actually writes to it,
>> probably your host. What is it? How is it configured?
>
> the program is 'ecasound'.
And how have you configured ecasound? Is it using Jack? If yes, how have
you configured Jack?
Regards,
Clemens
Again, the same audio gig shows different latencies, and, as I have written earlier, different buffer lengths, depending on USB vs non-USB audio.
Is there a default buffer length which does not depend on the application ? Is udev involved ? If yes, how can I check it and change settings ?
I did perform web search before writing here, and IIRC in 2.6.* kernels there was a module parameter determining latency - see in http://ubuntuforums.org/showthread.php?t=1608913 "options snd-usb-audio nrpacks=1", but if I understand correctly, the option is no longer available.
Regards,
Sergei.
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