Originally posted by Alejandro Nova
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It was only maybe a month ago that Ubuntu's not-QAed-without-PulseAudio ALSA config decided my USB-MIDI device was the default soundcard and I decided to hasten my yearly "Give PulseAudio another chance" event.
This year, despite much googling, I'm going to have to bite the bullet and return to ALSA dmix because PulseAudio is forcing me to choose between crackling in some apps (run it normally with any settings I can find) or clipping in some other apps (run it on top of dmix to resolve the crackling).
...also, for whatever reason, starting up pavucontrol causes the pulseaudio Daemon to suddenly start consuming an extra ~7% of a CPU core on my Athlon II X2 270. Given that, as I've tuned it (using stuff like src-linear resampling), it only takes 6% to actually MIX two audio streams (2% to play a single one), that's ridiculous.
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