[LAD] Cracking sound via USB (ALSA urb.c:480: frame 5 active: -18)

[Jeremy Jongepier]

On 05/23/2011 10:20 PM, Aurélien Leblond wrote:
> Hi,
> 
> I seem to have an issue with USB soundcards on my laptop.
> I have tried two of them, but I keep getting crackling sounds while playing
> with Ardour or Hydrogen.
> Everytime this crackling sounds occur, I get the following in dmesg:
> ALSA urb.c:480: frame 5 active: -18
> 
> The Kernel is 2.6.39 with Irqthreads, Alsa is the git version (1.0.24).
> 
> I have tried a lot of things already, but I'm really ready to restart the
> investigation from scratch and to provide any information!
> 
> Thanks in advance for the help.
> 

Hello Aurélien,

What are your JACK settings? And what kind of USB host controller does
your motherboard have?
And there are some others on this list interested in purchasing a
M-Audio Fast Track Ultra/Ultra 8R. Did you have to patch anything or did
the card work out of the box?

Best,

Jeremy

PS. imho this thread belongs on linux-audio-user, not on linux-audio-dev