Q2.7 of this FAQ has information on mu-law coding.
A very good and very comprehensive list of audio file formats is prepared by Guido van Rossum. The list is posted regularly to comp.dsp and alt.binaries.sounds.misc, amongst others. It includes information on sampling rates, hardware, compression techniques, file format definitions, format conversion, standards, programming hints and lots more. It is also available by ftp from
A useful source of software (Sox, ulaw conversion, SoundKit etc) is:
Section 1 of the
comp.speech FAQ Home Page.
Jump to SpeechLinks, [Q1.1], [Q1.2], [Q1.3], [Q1.4], [Q1.5], [Q1.6].
Jump to [Q1.7], [Q1.9], [Q1.10], [Q1.11]
Administrivia, Copyright, Submit Information : Last Revision: 01:52 12-Apr-1996