Actually, the workaround that works for me is BOTH remove .pulse folder AND use the PULSE_NO_SIMD=1 variable. This way, problem doesn't come back and the high pitch seems really disappear.
I also found helpful a workaround to ignore dB in volume control, so when volume goes over 100% (absolutely crazy...) sound doesn't get distorted anymore. Man, when I said "karmic is the easiest for sound so far" I was SO off... -- Highpitched Rattling like Sound with 5.1 Surround Configuration on Karmic Koala https://bugs.launchpad.net/bugs/445849 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
