>>106521241
>128k is guaranteed transparency >96k is effectively transparent
What does it mean? The default quality setting profile with FFmpeg is 96k.
libvorbis – usable range ≥ 96Kbps. Recommended range -aq 4 (≥ 128Kbps)
>this is officially documented, tested, well known
This is not, I've read one article about it, and there is nothing really factual about anything but your ears.