[LAU] M-Audio Fast Track Pro: unreliable, distorted recording
ketil.thorgersen at gmail.com
Thu Aug 2 22:30:00 CEST 2018
Den 2018-08-02 22:09, skrev Tim:
> On 08/02/2018 05:29 AM, Ketil Thorgersen wrote:
>> So - dear clever people: Should I abandon the card or do you have
>> some ideas for a possible solution for me?
>> All the best!
> Hi list. Talk of intermittent distorted audio, clicks,
> and pops is really sending up a /huge/ red flag for me.
> This is just a shot in the dark but have you tried running
> with just one CPU core?
> Also, is the CPU clock throttling turned off, and are
> certain CPU features such as the Intel Hyper Threading
> turned off?
> Recall some months ago I had trouble with my PCI Delta1010
> ice1712-based card. Same issues. Clicks, pops, and
> after a while, distortion.
> After tough debugging it turns out I must run ONE core only.
> I can dig up the thread but basically that's it.
> Coincidentally, a few weeks later another poster asked the
> very same question about another brand of ice1712 PCI card.
> I explained the solution, and he replied that it worked.
> It seems to me that if your device works at all sometimes,
> it should work all the time.
> In my mind this screams out timing errors.
> Certain pointers are drifting with time, and not stable.
> In my case this was because of more than one CPU core.
> I tried affinity settings but it didn't seem to get anywhere.
> Only running one CPU worked.
> I think there's a small gnome taskbar thing that can set
> the CPU frequencies and cores.
> Ralf helped with command lines to set the number of cores.
> I don't have those commands handy ATM.
Interesting! I will test more tomorrow and let you all know if I find a
solution (or if I need help to find out e.g what the Gnome thing is called)
All the best!
More information about the Linux-audio-user