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Non-stationary signal parametric modeling techniques with an application to low bit rate audio coding

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3 Author(s)
Boyer, R. ; Dept. of Signal & Image Process., ENST, Paris, France ; Essid, S. ; Moreau, N.

Low bit rate audio coding often relies on Fourier representation despite its limitations for transient signal modeling. This study proposes alternative decompositions and expansion strategies that lead to more accurate modeling. Two classes of methods are considered, subspace decomposition methods, and atomic decomposition methods and their performances are compiled to propose an audio modeling scheme amenable to low bit rate coding.

Published in:

Signal Processing, 2002 6th International Conference on  (Volume:1 )

Date of Conference:

26-30 Aug. 2002