Newsgroups: comp.speech
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From: af801@Freenet.carleton.ca (Frank Worm)
Subject: speech compression algotirithms needed
Message-ID: <CE67K4.CxF@freenet.carleton.ca>
Sender: news@freenet.carleton.ca (News Administrator)
Organization: National Capital Freenet, Ottawa, Canada
Date: Thu, 30 Sep 1993 14:14:28 GMT
Lines: 16


I anm a developer of 8031/32 68HC11 microcontroller devices, in
my spare time and for non-profit I develop using same controllers
products for the disaledbled. I am looking at a special phone 
controller for a special women and need to be able to do some
speech comprerssion, I would linke to get 60 seconds of speech into
60 k of memory, ie 1KB/s 8,000kKb/s.

I hav ee been looking at CVDSSD and ADPCM to do this CVSD would
requiere extra hardware wiljhile ADPCM i could implement simply
with an ADC/DAC arrangement. If anyone knows of any good 'C' code for ADPCM
3 bit, or 4 bit could you send it to my email address, i can not do FTP's from this system yet! Any code theat will compress pspeaech down to the
above mention criteria and would work with an A/D,D/A set up (8 buit) would
be appreicated!
Thanks agasinin.
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