[ubuntu-studio-users] [LAU] M-Audio Fast Track Pro: unreliable, distorted recording

[Ketil Thorgersen]

Thank you so much for your answer!

The noise is ever present in Linux as soon as it is initiated. The noise 
is slightly better the higher sample frequency in Jack, but even without 
jack there is static noise and crackles. I just realised that I I have 
not checked whether this is on the headphone outlets only - but this 
seems unlikely since we had the problem on the recording the other day 
even after exporting to another computer with another interface. I'll 
check it though.

Thanks!

Ketil


Den 2018-08-02 12:22, skrev Thomas Pfundt:
> On August 2, 2018 11:29 AM, Ketil Thorgersen 
> ketil.thorgersen at gmail.com <mailto:ketil.thorgersen at gmail.com> wrote:
>
>     Since it is silent under windows and osx there
>     has to be something with how Linux treats the card - either it is the
>     drivers (it is supposed to be class compliant though) or something
>     with
>     thee USB treatment overall.
>     So - dear clever people: Should I abandon the card or do you have some
>     ideas for a possible solution for me?
>
>
> This is a very specific issue and I can't help with that 
> unfortunately, but I have been using the smaller version (M-Audio Fast 
> Track Mk II) at home without any issues for years now. However, it 
> does not like odd values in JACK (e.g. 44,1 kHz or frame rates that 
> are not the power of 2), then it will produce crazy noises once in a 
> while.
>
> Maybe your problem is similar and a configuration issue? To narrow it 
> down: What happens when you turn JACK off and run the card regularly 
> through ALSA/Pulseaudio? I wouldn't do serious recordings that way, 
> but does that get rid of the noise at least?
>
>

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