Detailed MP3/AAC/VORBIS articles about encoding (the base mathematics and stuff)?

[sinner]

Hi,
I am looking for some very detailed articles about those audio formats (MP3/AAC/VORBIS)... how the encoding works, where the main differences are and stuff like this.
Would be nice if there are some completed articles about it, so I don't have to search for each information myself ;)

Thankx in advance
_SiNnEr_

[SirDavidGuy]

Vorbis is very well documented and includes source code. Check out its psychoacoustical model.

Essentially, they all work by masking certain (hopefully) inaudible sounds.

[DSPguru]

:readfaq: q25

[tangent]

Originally posted by DSPguru
:readfaq: q25
FAQ needs updating on the audio-illumination links... need to change back to hydrogenaudio