Ah, the midrange noise was not entirely the psychoacoustics... I have a mode 0 (effectively a short block) bug. Forcing all short blocks int he encoder (Change the last line of the info_A struct in include/vorbis/modes.h to 64,0,2) makes it very obvious. I'll be hunting/killing that tonight. Greg Maxwell also found that the bitrarte is not dropping to 0kbps in digital silence like it should be. I'll be getting to that one tonight too. Monty --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/