[AG-TECH] 'Warbled' Sound under Linux

[Gavin W. Burris aka 86]

Consolidating some of your video capture slots with something like this:
http://www.icpamerica.com/products/accessories/IVC/IVC_200G.html

Then get a PCI soundcard that is known to work with the latest ALSA.  I 
recommend a Soundblaster 512 PCI.  I have not had luck with the Audigy 
cards at all.

I would try configuring and testing audio without other devices in the 
computer.  Other devices might be interfering with the audio or making 
your motherboard squirrelly.

Cheers.

John Hodrien wrote:
> I've had this problem before, and managed to escape it through upgrading 
> ALSA
> and friends.  But now it's back again, on a machine that's caused me 
> nothing
> but grief so far.
> 
> Initially I was trying to use an onboard SB Audigy 24bit with ALSA.  Sadly
> recording is not supported.  Then I tried OSS, but despite claiming support
> for recording, it doesn't work.
> 
> So I've bought a Terratec USB 5.1 MkII card (all PCI slots are used by 
> capture
> cards) which uses the generic snd-usb-audio driver.  Using ALSA rat 
> leaves me
> shafted, as it doesn't even start up with a failed assertion.  I might 
> poke at
> this later although I suspect this is a painful road.
> 
> Using OSS rat with ALSA (using OSS emulation) works, and recording works
> perfectly.  Playback however is shoddy, with it sounding warbled.  As 
> far as I
> can gather it's trying to repair the audio (as it sound different with
> different repair schemes) but there's no packet loss.  If I add 
> redundancy to
> the stream, the audio sounds fine, as does it if I drop to 8kHz.
> 
> Neither of these are a solution though.  Anyone got any suggestions as 
> to how
> to fix this?
> 
> jh
> 

-- 
Gavin W. Burris aka 86
Senior Systems Programmer
Penn State Visualization Group
http://viz.aset.psu.edu/ga5in