Subject: Re: [linux-audio-dev] SBLive again
From: Josh Green (jgreen_AT_users.sourceforge.net)
Date: Mon May 19 2003 - 02:41:36 EEST
On Sun, 2003-05-18 at 08:03, Lukas Degener wrote:
> - As described above, the noise starts every now and then (i haven't yet
> found something that would proofable trigger it). First there are a few
> clicks and pops, then it becomes more "dense" and soon it sounds like
> some high frequent crackling. (dropped frames i suppose, lots of them).
> This lasts till jackd reports an x-run, and that's where it stops
> abruptly. (So there are situations when xruns become your friend :-) )
> BTW, any idea how i could get more "run-time" info on what happens in my
> machine when this crackling starts? Is there a way to "see" irq activity?
>
The symptoms of your problem remind me of what I experienced with full
duplex operation on a SB Live (i.e., recording and playing back at the
same time). Are you using it in full duplex mode? I seem to remember
this having something to do with the record and playback buffers
drifting out of sync. I'm not sure it was ever solved though. It was
quite a while ago when I was playing with this stuff. Cheers.
Josh Green
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