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An adaptive bit allocation scheme for coding of speech signals using partial sets of orthogonal functions

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2 Author(s)
A. S. Spanias ; Dept. of Electr. & Comput. Eng., Arizona State Univ., Tempe, AZ, USA ; W. B. Mikhael

A least squares pole-zero algorithm in the transform domain which fits each of the retained subsets of the complex transform components accurately is presented. The pole-zero function, while characterized by real coefficients about twice the number of the retained complex transform components, carries enough location, magnitude, and phase information for accurate signal reconstruction. The algorithm is applied for the coding of the mixed DFT-WHT parameters. Results are given for 8 kb/s and 6.4 kb/s

Published in:

Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on

Date of Conference:

14-16 Aug 1989