DocumentCode
2388979
Title
An adaptive tree search algorithm with application to multiresolution based perceptive audio coding
Author
Prelcic, Nuria González ; Pena, Antonio S.
Author_Institution
Dept. de Tecnoloxias das Comunicacions, Vigo Univ., Spain
fYear
1996
fDate
18-21 Jun 1996
Firstpage
117
Lastpage
120
Abstract
Search algorithms for selecting signal decompositions based on the minimization of a cost functional have been proposed in the literature, in addition to several additive and non-additive information costs. We introduce a new cost function and a search algorithm built from a perceptual criterion. Their efficiency is demonstrated with results showing higher quality compressed audio signals than preliminary approaches at similar bit-rates
Keywords
adaptive systems; audio coding; audio signals; data compression; minimisation; signal resolution; tree searching; adaptive tree search algorithm; additive information costs; bit rates; compressed audio signal quality; cost functional minimization; efficiency; multiresolution based perceptive audio coding; nonadditive information costs; signal decompositions; Audio coding; Auditory system; Bandwidth; Cost function; Distortion; Frequency; Minimization methods; Signal analysis; Signal resolution; Wavelet packets;
fLanguage
English
Publisher
ieee
Conference_Titel
Time-Frequency and Time-Scale Analysis, 1996., Proceedings of the IEEE-SP International Symposium on
Conference_Location
Paris
Print_ISBN
0-7803-3512-0
Type
conf
DOI
10.1109/TFSA.1996.546700
Filename
546700
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