PARAMETRIC AUDIO CODER BASED ON SPARSE APPROXIMATION WITH FRAME-BASED PSYCHOACOUSTIC OPTIMIZED WAVELET PACKET DICTIONARY
Abstract
Time-frequency signal transform is considered. Advantages of joint time-frequency analysis over traditional separate analysis in time or frequency domains are shown. Matching pursuit algorithm and modified psychoacoustic matching pursuit describes. Universal audiocoder scheme based on sparse approximation with frame-based psychoacoustic optimized wavelet packet dictionary proposed.
About the Authors
Al. A. Petrovsky
Белорусский государственный университет информатики и радиоэлектроники
Belarus
Belarus
V. Y. Herasimovich
Белорусский государственный университет информатики и радиоэлектроники
Belarus
Belarus
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Review
For citations:
Petrovsky A.A., Herasimovich V.Y. PARAMETRIC AUDIO CODER BASED ON SPARSE APPROXIMATION WITH FRAME-BASED PSYCHOACOUSTIC OPTIMIZED WAVELET PACKET DICTIONARY. Doklady BGUIR. 2015;(1):5-11. (In Russ.)
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