Re: [Jack-Devel] ALSA PCM substreams

On Wed, December 4, 2013 3:19 pm, John Rigg wrote:
> That was/is a problem with ALSA pcm_multi:
> http://lists.jackaudio.org/private.cgi/jack-devel-jackaudio.org/2012-December/010210.html
>

Yes, that was the problem I had partially remembered.  Wouldn't the same
concern apply here?  The equivalent of pcm_multi would have to be used for
this device if it is two independent streams that share a clock but can be
started and stopped independently.

-- 
Chris Caudle


On Wed, December 4, 2013 3:19 pm, John Rigg wrote:
> On Wed, Dec 04, 2013 at 10:55:07AM -0600, Chris Caudle wrote:
>> Wasn't there a problem a few months ago where two devices which were
>> synchronized externally and made into a compound device using asoundrc
>> occassionally were flagged as having an xrun because the first card
>> interrupted that it had finished the buffer, but the second card was
>> still
>> finishing up the last few samples because there was no way to enforce
>> the
>> start command to be on the same clock edge?
>>
>> Seems that the same thing could potentially apply to this device.
>
> That was/is a problem with ALSA pcm_multi:
>
> http://lists.jackaudio.org/private.cgi/jack-devel-jackaudio.org/2012-December/010210.html
>
> (you need to be logged in as jack-devel list member to see it).
>
> John
> 
> Jack-Devel mailing list
> [hidden]
> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
>

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