Sound input problems on Shuttle SN68PTG5
Les
hlhowell at pacbell.net
Tue Apr 29 07:08:18 UTC 2008
On Tue, 2008-04-29 at 07:44 +0100, Mike Evans wrote:
> Tim wrote:
>
> > Just in case it helps, I've seen a similar thing with Audacity on all
> > the PCs that I've run it on (each with different hardware). With no
> > audio input, the VU meters show one channel wildly fluttering about, and
> > with increased gain over the other. With a signal, it's somewhat
> > similar (fluttering meter, mismatched left versus right gain, but the
> > audio records pretty much okay). In the end, I plugged the computer
> > into a real audio mixer, ran tests to find the nominal and clipping
> > levels, then ignored the metering on the computer.
>
> Thanks for your thoughts. The PC I've replaced with the new Shuttle one
> doesn't seem to have this problem and I have used it for converting some
> old cassette recordings to OGG-Vorbis. That just had an ancient
> 2-channel Soundblaster card. The audacity meters worked pretty much as
> you would expect. I may yet raid it for that card and dump the on-board
> on the Shuttle.
>
> I have tried ignoring the meter and recording using this chipset, but
> the noise is worse than I would get on a cheap tape recorder, and only
> records on the left channel, which is useless. Running under Vista it
> records quite acceptably. Hurumph!
>
Have you tried removing pulse audio? That really messed up my wife's
system.
Regards,
Les H
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