Things were running smoothly, but just now I was having distortion again on the USB audio.   OSX Mountain Lion (10.8)   Running: Xcode (4.6.1), Firefox, Thunderbird, Terminal, then launched Cog and the audio was distorted as soon as I was using the keyboard.   Rebooted ...  ...

Thanks. There are quite some 'Unexpected connection closure' errors at the time when it happened, but I am not sure they correlate.   On day one (after the upgrade to 10.8.3) the problem was quite persistent (e.g. after unplugging the USB device a couple of times). However, on day two and...

Similar problem here! After upgrading from OSX 10.5 to OS 10.8 on my macbook pro, I started to have issues with audio playback over USB to the Nuforce HDP. The sounds gets distorted for a number of seconds once every 20-30 seconds.   Problem occurs: - regardless of audio app (itunes / cog)...