Hi, I'm still seeing some SIMD issues (using 0.9.22 but that wont change much with git master - other than Arun's Orc stuff which might be a winner! When testing with a52, reducing the volume of the Front Centre channel to 50% vs. 100% for the others, causes a high pitched artefact to be introduced. exporting PULSE_NO_SIMD=1 prevents the problem (although I do still seem to get some artefacts when mixing - but this could be due to lack of rewind on a52 or somehow related to that). Just mentioning here by way of recording the issue. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mageia Contributor [http://www.mageia.org/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]