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- Newsgroups: comp.dsp
- Path: sparky!uunet!infoserv!lila!dorsey
- From: dorsey@lila.com (Bill Dorsey)
- Subject: Speech Coding and PELP
- Message-ID: <BzBpvr.Kn0@lila.com>
- Date: Tue, 15 Dec 1992 23:14:14 GMT
- Lines: 21
-
- I have an application that requires me to encode human speech at relatively
- low bit rates (<=9600bps) and not require a dedicated DSP processor. I'm
- looking for a method that could work on your typical 33MHZ 486-based PC. I
- realize that this may be a tall order, and certainly do not require that the
- speech be telephone quality -- merely intelligible would suffice for starters.
-
- I've looked into PCM, CVSD, and ADPCM, and none of these methods would seem
- to work at the bit rates I'm looking for. I briefly looked at CELP coding,
- but that would seem to require more processor bandwidth than I wish to use.
- Finally, PELP (Phase Excited Linear Prediction) has been mentioned as a
- coding method that may work given my constraints. A search of the local
- technical bookstore has not revealed any texts that discuss this method. If
- anyone can provide details on how it works, comments on its suitability,
- references to texts on it, or other suggestions for coding methods that may
- meet my requirements, I will be most grateful.
-
- --
- Bill Dorsey "Most people mistake law for justice and authority for
- dorsey@lila.com liberty. You will hear them talk of 'liberty under law,'
- ripem public key and they are content to see it so deep under the law that
- on request it is completely obliterated." -- Herbert Spencer
-