I have an O2 Amp and DAC combo.
I use this as the primary source for everything on my computer - music, movies, games etc.
I have noticed some sound crackles while playing a CPU intensive game. It isn't all the time so I thought maybe it was a driver issue.
I think I have just confirmed it is CPU usage related by trying to listed to a youtube video while encoding a movie. My CPU usage was 100% on all 4 cores and the sound is constantly breaking up. As soon as the cpu goes back to idle the music sounds great.
Is there any remedy for this problem? Can I push the CPU priority higher on the ODAC?