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Convention Paper

Improved Transient Pre-Noise Performance of Low Bit Rate Audio Coders Using Time Scaling Synthesis

Authors: Crockett, Brett G.

AES Convention 117 · Paper 6184 · October 2004

Abstract

A new audio coding tool that uses improved time scaling synthesis techniques has been developed which reduces the duration of pre-noise introduced by low-bit rate audio coding of transient material. When transient pre-noise reduction processing is used, decoded PCM audio located prior to transient material is processed in the decoder using time scaling synthesis. The synthesized PCM audio is used to remove or reduce the duration of transient prenoise, improving the perceived quality of low-bit rate audio coded transient material.

Details

Published in
AES Convention 117
AES Convention
117
Paper number
6184
Publication date
October 6, 2004
Session subject
Lossy and Lossless Audio Coding
Affiliation
Dolby Laboratories Inc. San Francisco, CA (See document for exact affiliation information.)
Type
Convention Paper