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Title: A backward-adaptive perceptual audio coder
Author: Rodrigues, João Manuel
Tomé, Ana Maria
Issue Date: 1996
Publisher: IEEE
Abstract: This paper presents a new audio compression algorithm that includes a nonuniform filter bank, gain-adaptive logarithmic quantizers, arithmetic entropy coding and an explicit psychoacoustic model to adapt the quantization according to perceptual considerations. Unlike existing perceptual coders, the new system is backward-adaptive, i.e., adaptation depends exclusively on already quantized samples, not on the original signal. We discuss the advantages of backward adaptiveness and show that it can be successfully applied to perceptual coding.
Peer review: yes
ISBN: 978-888-6179-83-6
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Appears in Collections:DETI - Capítulo de livro
IEETA - Capítulo de livro

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