Hello, > At this point, on system wide running, pulseaudio uses 34% cpu when it > idles, when music is played, it uses 42%. It's a lot on the 700 mhz > raspberry pi cpu, I'm pretty sure there is a way to decrease it, but > documentation don't talk about this point. that sounds way too high... unfortunately, the Broadcom CPU does not support ARM NEON I found that the ARM assembler code does not improve performance on a Cortex-A8, maybe it also helps to disable on the Raspberry? > I don't use the raspberry internal sound card, I plugged a little usb > Terratec aureon sound card, it works very well excepted the cpu usage... would be interesting to find out where the CPU time is spent; in PulseAudio or somethere in the USB stack... do you have a chance to do some profiling? maybe you can get oprofile to work? regards, p. -- Peter Meerwald +43-664-2444418 (mobile)