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Convention Paper

Quantisation Noise in Perfect Reconstruction Filterbanks and Its Consequences for High Fidelity Audio Compression

Authors: Jakob, Conrad F.; Bradley, Alan B.

AES Convention 5r · Paper 4046 · March 1995

Abstract

The effects of quantization noise in high-fidelity audio coders has been analyzed by incorporating a quantization noise model into the time domain aliasing cancellation (TDAC) filter bank. Separate expressions for signal reconstruction error, aliasing error, and reconstructed quantization noise are found. These allow the quantizer parameters to be optimized to reduce the subjective effects of these errors and permit greater flexibility when designing waveform coders for high-quality audio signals.:

Details

Published in
AES Convention 5r
AES Convention
5r
Paper number
4046
Publication date
March 6, 1995
Affiliation
Departmentof Communicationand ElectronicEngineering, RMIT,Melbourne,VIC. (See document for exact affiliation information.)
Type
Convention Paper