摘要
音频信号数字化后的数据量相当大,不利于传输和存储,在日益广泛应用的数字技术中,数字音频的压缩成为其中的关键技术之一。介绍了频编码的模型及原理,分析了国内外现存的一些常用音频编码系统,并阐述了它们的性能特点以及实际中的应用。
A large amount of the data are present after audio signal is digitized. It is not convenient for transmission and storage of the signal. Digital audio coding has become one of the key techniques in digital technique in which is of the signal applied today. This paper introduces the model and principle of audio coding, analyzes some commonly used audio coding systems at home and abroad. And it elaborates their performances and applications.
出处
《信息技术》
2006年第9期1-4,共4页
Information Technology
