[LAU] Regular Xruns?

Arnold Krille arnold at arnoldarts.de
Sat Aug 8 03:13:53 EDT 2009

On Saturday 08 August 2009 04:16:06 you wrote:
> On Fri, Aug 07, 2009 at 02:57:56PM +0200, Arnold Krille wrote:
> > On Friday 07 August 2009 14:54:30 James Stone wrote:
> > > In the end, I tracked down my 14 minute xruns to running the SBLive at
> > > 44100 instead of 48000.. I wonder if that would help with the OP
> > > problem? Now, is this a bug with jack (v 0.116) or just a design
> > > problem with the SBLive? I know the SBLive runs at 48000, and has to be
> > > resampled (or something similar that I don't understand) to run at
> > > 44100, but surely that shouldn't cause xruns.. The slow build of static
> > > before the xrun now makes much more sense to me!
> > I think this could be the problem also for the OP! Nowadays many sound
> > devices just work with fixed 48000kHz and resample when opened with other
> > rates...
> That makes sense to me. The question I have now is: who or what is doing
> the resampling? Is it the card, internally? Or ALSA? If it's ALSA doing the
> resampling, then the problem is likely the driver for the card.

Afaik its the cards doing the resampling.

That is why you should run jackd in 48kHz always, the resampling provided by 
software especially on linux with libsamplerate is much better.

Have fun,

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