The version of PulseAudio shipped with 2010.0 has had numerous bug fixes since it was released. This updates the PulseAudio package to 0.9.21 which contains most of the bug fixes . Additional fixes from the upstream stable-queue branch are also included in this package. The fixes include better support for variations in ALSA mixer elements, bluetooth fixes and general stability fixes. Additionally, the alsa library shipped with 2010.0 had some flaws in the way certain timer events were handled and with how paramaters were set for some input devices . Fixes for these flaws are also included.