Previous MPEG-1, MPEG-2 Audio standards provided a single bitrate, single bandwidth tool set, with different configurations of that tool set specified for use in various applications. MPEG-4 provides several bitrate and bandwidth options within a single bitstream, providing a scalability functionality that permits a given bitstream to scale to the requirement of different channels and applications or to be responsive to a given channel that has dynamic throughput characteristics. Many of the tools specified in MPEG-4 are the state-of-the-art tools providing scalable compression of speech and audio signals. In this paper, we present the fine grain scalability tool in MPEG-4 Audio.

Authors: Kim, Sang-Wook; Park, Sung-Hee; Kim, Yeon-Bae
Affiliation: Samsung Advanced Institute of Technology, Suwon, Korea
AES Convention: 111 (November 2001) Paper Number: 5491
Publication Date: November 1, 2001
Subject: Coding of Audio Signals

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