Howdy, > -----Original Message----- > From: Adam Whitehead [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, May 10, 2000 6:14 AM > To: [EMAIL PROTECTED] > Subject: > Sorry for this not totally MP3-encoder-related mail, but I > was wondering > if anyone had some pointers to web sites, books etc. I could > check out to learn some basics on audio coding. I'm > particularly > interested in the mathematical side of it. My favorite book on audio coding is not actually on general audio coding, but rather on speech processing (which is where most of the early effort on audio coding was concentrated by the good people at ATT Bell Labs): 'Digital Processing of Speech Signals', by Rabiner & Schafer, c. 1978. (Yes, that's 1978. It was still in print in '93, when I bought my copy for $70 new.) Of course, a lot of the same ground is covered (along with much more general DSP) in the classic DSP volume, 'Discrete-Time Signal Processing', by Oppenheim & Schafer, c. 1989 (and in continual update/reprint), but, with due respect, I don't think Oppenheim made a good replacement for Rabiner - I find the earlier text _much_ more readable. Just my opinion, though. Both books cover basics of DSP and sampling, and the speech book has sections on mulaw, ADPCM, and linear prediction, among many other flavors of non-psychoacoustic codec technologies. (See also Parsons', 'Voice and Speech Processing', c. 1987 for a more detailed and up-to-date look at speech processing.) For psychoacoustics, though, I'm not sure where to send you. I don't know if anyone has put together a good reference text on audio MPEG. You can grep the web and find a number of really basic summaries, and then there's Bosse Lincoln and Julius Smith's pages at Stanford, but I don't know that there's really the audience for a printed book (though I'd love one if anyone has a recommendation). Hope that helps, Alex -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
