[LAU] noise with pulseaudio on Delta 66

Len Ovens len at ovenwerks.net
Mon Apr 8 22:48:39 UTC 2013


On Mon, April 8, 2013 5:32 am, Paul Coccoli wrote:
> I've had a Delta 66 PCI audio card for over a decade, and it's always
> sounded great.  I recently had to transfer it to a new PC with a fresh
> install of Fedora 17.  Now, when I play anything using  any pulseaudio
> client, I get a strange digital noise (sort of like static, but almost
> like
> aliasing too).
>
> This does NOT happen when running jack, as far as I can tell.
>
> Aside from disabling or uninstalling pulseaudio, is there anything else I
> can do?  Does anyone else have this problem?

I also have a d66, but have not had that problem. Running Ubuntu, but that
shouldn't make a difference.

Are you using spdif for an input? What sample rate do you normally use
with jack? (pulse defaults to 44100) Does pulse have access to the
internal card? Are you bridging pulse-jack? or just having problems pulse
direct the d66?

Latency should not be a problem with pulse on it's own. The only problem I
have had with pulse has been with it having interaction between the
internal audio IF and the d66 when bridging... and with a netbook mic
which was 48000 only. I have had less problems setting pulse to default at
48k.


-- 
Len Ovens
www.OvenWerks.net



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