Chapter 14

An excellent collection of MPEG Audio links is pointed to from

http://www.mpeg.org/MPEG/audio.html

and another at

http://sound.media.mit.edu/mpeg4/audio/

The "official" MPEG Audio FAQ is linked from the URL

http://www.tnt.uni-hannover.de/project/mpeg/audio/faq/

A good resource for data compression compiled by Mark Nelson that includes libraries, documentations, and source code for MPEG audio and especially MP3.

http://www.datacompression.info

Prof. Barry Truax is an expert on electronic music. His acoustics handbook is at

http://www.sfu.ca/sonic-studio/handbook/index.html

This site includes a good search engine on sound, as well.

MPEG-4 Audio implements "Tools for Large Step Scalability", meaning allowing the decoder to decide how many tools to apply and at what complexity, based on available bandwidth. An excellent reference is given by the Fraunhofer-Gesellschaft research institute, "MPEG-4 Audio Scalable Profile", from link

http://www.iis.fhg.de/amm/techinf/mpeg4/scalable.html

An interesting list rating the quality value of many commercial audio codecs is at

http://www.soundexpert.info/