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Convention Paper

Transform-Domain Weighted Interleave Vector Quantization (TwinVQ)

Authors: Iwakami, Naoki; Moriya, Takehiro

AES Convention 101 · Paper 4377 · November 1996

Abstract

This paper reports on some improvements to the audio-coding method transform-domain weighted interleave vector quantization (TwinVQ). In the encoder, the frequency-domain coefficients are flattened at two stages before vector quantization is applied. The paper also introduces Bark-scale envelope coding. There are three frame modes to change time/frequency discrimination. According to the subjective quality tests, reproduction quality of 40 kb/s TwinVQ exceeded that of MPEG : Layer III.

Details

Published in
AES Convention 101
AES Convention
101
Paper number
4377
Publication date
November 6, 1996
Session subject
Low Bit-Rate Audio Coding
Affiliation
NTT Human Interface Laboratories, Musashino-shi, Tokyo, Japan (See document for exact affiliation information.)
Type
Convention Paper