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Design and performance of an analysis-by-synthesis class of predictive speech codersThe performance of a broad class of analysis-by-synthesis linear predictive speech coders is quantified experimentally. The class of coders includes a number of well-known techniques as well as a very large number of speech coders which have not been named or studied. A general formulation for deriving the parametric representation used in all of the coders in the class is presented. A new coder, named the self-excited vocoder, is discussed because of its good performance with low complexity, and because of the insight this coder gives to analysis-by-synthesis coders in general. The results of a study comparing the performances of different members of this class are presented. The study takes the form of a series of formal subjective and objective speech quality tests performed on selected coders. The results of this study lead to some interesting and important observations concerning the controlling parameters for analysis-by-synthesis speech coders.
Document ID
19910027746
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Rose, Richard C.
(MIT Lexington, MA, United States)
Barnwell, Thomas P., III
(Georgia Institute of Technology Atlanta, United States)
Date Acquired
August 14, 2013
Publication Date
September 1, 1990
Publication Information
Publication: IEEE Transactions on Acoustics, Speech, and Signal Processing
Volume: 38
ISSN: 0096-3518
Subject Category
Communications And Radar
Funding Number(s)
CONTRACT_GRANT: JPL-957074
Distribution Limits
Public
Copyright
Other
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