Re: RtApiAlsa: overrun detected

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On Monday 16 June 2008, you wrote:
> Constant Brouerius van Nidek wrote:
> > Well it interrupts Skype.  Five to ten overruns and than I am out of
> > Skype, aborted..
> > Do not know if I can influence the Alsa settings. Looking into the Skype
> > sound setup II found that incomming, outgoing and ringing have each 7
> > choices. Do not know what they mean and I am still looking into what they
> > are doing to my system. The choices I found are:
> >
> > Default device
> > Sound Fusion CS46xx (hw:CS46xx.0)
> > Sound Fusion CS46xx (plughw:CS46xx.0)
> > Sound Fusion CS46xx (hw:CS46xx.1)
> > Sound Fusion CS46xx (plughw:CS46xx.1)
> > Sound Fusion CS46xx (hw:CS46xx.2)
> > Sound Fusion CS46xx (plughw:CS46xx.2)
> >
> > Could intensive playing with these choices do something positive for the
> > Also setting?
>
> What version of alsa are you running?  Maybe an upgrade would help.
> There are links to the latest and greatest at http://www.alsa-project.org
>
> I recommend you use either the default device or one of the plughw
> devices.  They give you some alsa magic.
>
> What happens if you use arecord to record a sample directly rather than
> through skype?  See   man arecord   for sample command.
> It seems to me that it is skype causing the problem at the interface to
> alsa, rather than alsa itself.  This will confirm that.  If you can
> record without overruns using arecord, it is a skype interface problem.
> Underrun means that you are playing audio and the device
> runs out of frames to play, overrun means you are recording audio, and
> the device runs out of buffer space to put the audio.
>
> Someone posted on this list a link to http://frinika.sourceforge.net and
> there were some settings to prioritize sound high so it didn't get
> locked out by other happenings like beagle and other background disk
> scanners.

Thanks for the explanation about over and under run.
 Will do some homework on man arecord. What is a plughw device. Never heard of 
that expression.
Have following versions on this machine:
alsa-oss-1.0.14-23
alsa-1.0.14-31.2
alsa-utils-1.0.14.27

Does that mean update time?

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