I've searched around and have not been able to figure this out. I actually started working on HDMI audio on an older 200 series card previously. I was hoping it would work with a completely new card and build, but the problem still persists.
Using aplay it sounds and plays fine:
aplay -D plughw:1,7 /usr/share/sounds/alsa/Front_Center.wav
However using VLC and I get crackling. I had a 200 series card that did the same thing on a different computer and never solved it. In Windows audio works flawlessly, I say this to show it's not a hardware or cable problem.
Anyone have any experience and a solution for this? I tried some module sound.conf settings however they don't change the output crackling or they completely remove the ability to play anything.
01:00.0 VGA compatible controller: NVIDIA Corporation GF116 [GeForce GTX 550 Ti] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GF116 High Definition Audio Controller (rev a1)
Last edited by jskier (2012-12-12 01:29:00)