Rate-distortion allocation for time-frequency dependent audio coding

Author

Der, Ricky ; Kabal, Peter ; Chan, Wai-Yip

Author_Institution

Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, Que., Canada

Volume

3

fYear

2005

fDate

18-23 March 2005

Abstract

A stream coding framework is presented for solving the distortion-constrained time-frequency dependent quantization problem that naturally arises when overlapped time-frequency decompositions are used. The main contributions of this paper are: (1) an efficient rate-distortion allocation algorithm for dependent quantization when the neighborhood of dependency is large; and (2) demonstration that a perceptual excitation distortion measure produces better coded audio quality than the conventional noise-to-mask ratio measure.

Keywords

audio coding; quantisation (signal); rate distortion theory; signal reconstruction; signal representation; transform coding; coded audio quality; distortion-constrained quantization; noise-to-mask ratio measure; overlapped time-frequency decompositions; perceptual excitation distortion measure; rate-distortion allocation; signal time-domain version reconstruction; stream coding; time-frequency dependent audio coding; time-frequency signal representation; transform coding; Audio coding; Distortion measurement; Frequency estimation; Noise measurement; Nuclear magnetic resonance; Quantization; Rate-distortion; Signal to noise ratio; Time domain analysis; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-8874-7

Type

conf

DOI

10.1109/ICASSP.2005.1415680

Filename

1415680