Hi. Excuse me if this has been discussed already on this list (i don't find a refernce to the thread if there was one). I just discovered some slight distortion with a pure sine tone playing from pd or supercollider via OSS emu or jack thru my HDSP (PCI&Multiface) whenever the output level was more than -5dB (peak value, i think). Alsa drivers are of version 1.0.4 Is this an software issue? Thanks for any hints! Peter