uaudio, M-Audio FastTrack Pro device - sound distorted

[Hans Petter Selasky]

On Saturday 23 April 2011 04:15:01 Marcel Bonnet wrote:
> Hi, folks.
> 
> I'm using the M-AUDIO FastTrack Pro USB audio interface, but every time I
> play or record, the sound get distorted.
> If I record a clean guitar, it sounds like using a light distortion/driver.
> Any mp3 or wav I play is distorted too, especialy the higher notes.
> This device has it's own mixer. I'm sure the sound is not clipping because
> the interface has its own knobs (volume/gain for in/out) and a led for
> clipping indication.
> 
> I tried to change the volume using the mixer command - nothing changed.
> I thought the problem could be the frequency rate: tried the sysctl
> dev.pcm.0.play.vchanmode (tried the 3 values without any difference) and
> the dev.pcm.0.play.vchanrate (but the system always mantain the same freq
> = 44100). No sucess too.
> 
> I just don't know what to do. Don't even know if I'm in the right
> direction. Maybe it could be a driver's problem?
> I apreciate any help. Below there are some information.

Hi,

What does the distortion look like in audiacity?

--HPS