Structured audio and effects processing in the MPEG-4 multimedia standard

作     者：Scheirer, ED 

作者机构：MIT Media Lab Machine Listening Grp Cambridge MA 02139 USA 

出 版 物：《MULTIMEDIA SYSTEMS》 (多媒体系统)

年 卷 期：1999年第7卷第1期

页      面：11-22页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Interval Research Corporation 

主　　题：structured audio audio coding audio synthesis MPEG-4 multimedia standards 

摘      要：While previous generations of the MPEG multimedia standard have focused primarily on coding and transmission of content digitally sampled from the real world, MPEG-4 contains extensive support for structured, synthetic and synthetic/natural hybrid coding methods. An overview is presented of the Structured Audio and AudioBIFS components of MPEG-4, which enable the description of synthetic soundtracks, musical scores, and effects algorithms and the compositing, manipulation, and synchronization of real and synthetic audio sources. A discussion of the separation of functionality between the systems layer and the audio toolset of MPEG-4 is presented, and prospects for efficient DSP-based implementations are discussed.