QUOTE(guruboolez @ Apr 15 2003 - 08:33 AM)
On quiet music & low bitrate, vorbis VBR is the worst codec I ever heard. And according to this blind-test, it seems that I'm not alone to have this feeling.
Apparently there is some bug in the VBR that keeps the bitrate too low on quiet pieces.
You can manually set a minimum bitrate to keep it from falling through the basement even
on VBR/quiet.
edit:
I tried it on my most dynamic track ("monochrome" on Best of Kodo) . It starts with a long, ~5minute, drum crescendo. The 1st 30 seconds averages -75 dB, and on ogg q0 codes at 10 kb/s with very obvious
artifacts. I recoded it with "oggenc -m 50 -b 64" (min rate 50 kb, average 64). For some reason
that first bit was coded at ~40 kb/s, but it still sounds a lot better than just plain q0.