Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!chinacat!chip
From: chip@chinacat.Unicom.COM (Chip Rosenthal)
Newsgroups: comp.dsp
Subject: Re: Information Wanted on CCITT 32-kb/s ADPCM Algorithm
Message-ID: <1449@chinacat.Unicom.COM>
Date: 2 Aug 90 01:40:08 GMT
References: <36771@masscomp.ccur.com>
Distribution: na
Organization: Unicom Systems Development, Austin, TX
Lines: 15

In article <36771@masscomp.ccur.com>
	tscott@westford.ccur.com (Tom Scott) writes:
>My guess is that the chip implements CCITT's standards 32-kb/s ADPCM
>algorithm but don't know what this algorithm is.  Help is appreciated.

If the Toshiba chip does indeed implement the standard ADPCM algorithm,
it would be specified in G.721.  (BTW...even if it is G.721, you need to
know which one -- there were two.)  You can get the CCITT fasciles through
a place like Omnicom, but they are expensive.  A good engineering library
should have them as well.

-- 
Chip Rosenthal                            |  You aren't some icon carved out
chip@chinacat.Unicom.COM                  |  of soap, sent down here to clean
Unicom Systems Development, 512-482-8260  |  up my reputation.  -John Hiatt