[linux-audio-user] Re: [Jackit-devel] What is a 'delay exceeds' vs. and xrun - BIG MISSES - AND SOLUTIONS!

Jack O'Quin joq at io.com
Wed Oct 6 15:39:22 EDT 2004


Mark Knecht <markknecht at gmail.com> writes:

>    In terms of better testing I now need to concentrate on finding an
> application that run without creating xruns within the application
> itself. At higher latency values (p=256 for instance) alsaplayer -r -o
> jack runs pretty well, but as I move to lower latencies I find that
> alsaplayer deterministically creates xruns at the transistion between
> every song on a CD. I also tried alsaplayer playing wave files from
> disk, but I see xruns as it goes from one file to the next also.
> 
>    I want to try using chrt to see if alsaplayer is really getting
> real-time access, etc. Maybe there are things still not right with the
> way I'm running it on my box.

I sometimes see problems with alsaplayer at low latencies, too.
Generally below -p128 or so.

>    Is there any other simple app that could play a wave file from, for
> instance, memory without this sort of problem?

I've had good luck with hydrogen.  Play one of the demo drum patterns.

>    So, the good news is my Gentoo system is not broken, and that I've
> hopefully learned a bit and contributed just a little bit more along
> the way. That said I still have a long ways to go.

Good work.
-- 
  joq



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