I am getting some crackling noise during playback in Renoise. This is only happening when using my USB audio interface through Jack and not my internal IntelHDA chip. I am not getting XRuns during these crackles. I don’t get the crackles in other audio apps(ardour, hydrogen, guitarix). I changed the USB cable and my headphones to make sure they weren’t culprit. I am out of ideas here. What could be causing this crackling noise?
Those posts don’t seem to be my issue. I haven’t tried switching to Openbox. But, I booted my AVLinux install and the same audio interface setup works with Renoise perfectly. So that leads me to believe it either lies in something Gnome is loading or a usb driver issue. AVLInux is using 2.6.36, while Fedora is using 2.6.35.
I killed gnome-power-manager, still crackles.
It is on its own direct usb port, and I made sure it isn’t sharing the IRQ with anything resource hungry like my graphics card.
So I was messing around with this again today and noticed something. The crackling only happens during playback AND I’m on the Pattern Editor. When I switch to the Mixer, Sampler Keyzones, or Sampler Editor panes the crackling goes away. What is happening on that pane that could be causing my Jack audio playback through, only on my USB device to crackle???
What is your audio interface. It could be that it proper ALSA support was only written into that, more recent kernel in AVlinux. Check the ALSA wiki and see if there’s any info on your device. There may well be a quick patch, or instructions to edit a file or two that’ll fix the problem.