Path: utzoo!telecom-request
Date: Fri, 5 Apr 1991 15:23:08 GMT
From: Quinn Jensen <jensenq@iconsys.icon.com>
Newsgroups: comp.dcom.telecom
Subject: Converting PCM to ADPCM
Message-ID: <telecom11.268.14@eecs.nwu.edu>
Organization: Sanyo/Icon International, Inc., Orem, Utah
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I am looking for some routines, hopefully in C, to convert 8-bit
companded PCM samples to ADPCM.  I want to convert the samples in
not-necessarily real time.  If no software is available, I'll probably
attempt myself to impliment a transcoder in fixed-point using C, with
the TI app note as a reference ("32-kbts/s ADPCM with the TMS32010,"
_Digital Signal Processing Applications with the TMS320 Family_, Sect.
17).  The code and documentation found on Dr. Bub for the 56001 should
be helpful as well.