DocumentCode :
929919
Title :
Bounds on R_1 (D) functions for speech probability models (Corresp.)
Author :
Abut, Hüseyin ; Erodol, N.
Volume :
25
Issue :
2
fYear :
1979
fDate :
3/1/1979 12:00:00 AM
Firstpage :
225
Lastpage :
228
Abstract :
Upper and lower bounds on first-order rate-distortion functions are derived for some selected speech probability models and two different fidelity criteria. The bounds are computed numerically when the analytical procedures are intractable. The models employed involve the Laplacian density, the gamma density, and first- and second-order modified Bessel functions K_{o} and K_{1} . For both the absolute difference and the mean-square difference distortion measures, the K_{o} model yields the tightest bounds on R_{1}(D) functions.
Keywords :
Rate-distortion theory; Speech coding; Ash; Density measurement; Distortion measurement; Entropy; Information theory; Laplace equations; Rate-distortion; Reliability theory; Speech; Upper bound;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.1979.1056024
Filename :
1056024
Link To Document :
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