[LAU] Recording hiss - M-Audio Fast Track Pro, Fedora 8 CCRMA

[Lee Revell]

On Fri, Jun 6, 2008 at 2:21 AM, Thomas Vaughan (Yahoo) <tomva1 at yahoo.com> wrote:
> Hello all-
>
> I've been setting up a digital audio workstation using Fedora 8 and the PlanetCCRMA realtime kernel.  I've got an M-Audio Fast Track Pro connected via USB for audio and MIDI i/o.
>
> A log of my efforts is here: http://www.wavepacket.net/tomva/wl-012-mobile-daw.html
>
> Everything has worked out great so far, *except* for recording.
>
> When I attempt to record audio using the Fast Track Pro, I hear a *lot* of line noise.  It doesn't seem to matter what input I use (1/4" jack or XLR), nor does adjusting the sample rate or frame count.  I get the hiss recording a guitar (direct line) or mic.  I don't see any xruns.
>
> The Pro appears to have some sort of noise gate?  Certainly it is quiet until I start playing, at which point I'll hear the guitar plus a lot of hiss.  Other parts of my sound gear don't show this symptom.
>
> Any ideas?  I'm hoping this is due to bad Alsa/JACK settings and not to the Fast Track Pro.
>

- Try a different USB port

- See if you can reproduce the problem on another OS

Lee