Sound input problems on Shuttle SN68PTG5

[Tim]

On Mon, 2008-04-28 at 22:28 +0100, Mike Evans wrote:
> My problem is  when I try to use the sound input - either front mic or
> line-in sockets.  If I start Audacity I see -30dB noise on the left 
> channel only, even with no input source connected.  If I feed in a 
> signal I see it on the left channel, in addition to the noise, 

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.

Any time I try to use a computer for audio recording work, I'm reminded
of how annoying it had been trying to record on a 1960s tape deck
without VU meters, or incredibly mal-aligned ones.  Not to mention poor
noise floors and low headroom.

Have you tried any other audio editing software?  I've had a fiddle
around, a while back, but hadn't really found anything satisfactory for
recording analogue sources.

-- 
(This computer runs FC7, my others run FC4, FC5 & FC6, in case that's
 important to the thread.)

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