Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/30718
Title: | High quality audio coding using backward estimation of perceptual phenomena |
Author: | Rodrigues, João Manuel Tomé, Ana Maria Perfeito |
Keywords: | Audio coding Compression Auditory perception |
Issue Date: | Mar-1996 |
Publisher: | Associação Portuguesa de Reconhecimento de Padrões (APRP) |
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 |
URI: | http://hdl.handle.net/10773/30718 |
Appears in Collections: | DETI - Comunicações IEETA - Comunicações |
Files in This Item:
File | Description | Size | Format | |
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paper.pdf | 87.28 kB | Adobe PDF |
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