I'm wondering if anyone has encountered the same issue :
I'm using a diy usb dac (based on the pcm2702, like many) and there is a constant high frequency hiss when no sound is playing. If I play a song in winamp (or watch a dvd or play a game), the hiss stops. If I pause winamp, the hiss is not present at first then comes back after 30 sec. If I play a file with the volume at 0%, no hiss. The hiss volume is however always the same, regardless of the master volume settings. It is also "hissing" when not connected to the computer.
It's under windows vista btw.
Edited by 00940 - 10/3/10 at 6:22pm
