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数字音频压缩标准AC-3算法已在广泛领域得到应用，如DVD，HDTV等，是发展家庭影院的主要技术之一。简要介绍AC-3算法的特点，帧结构及其编、解码原理，并指出对其相关技术进行研究的必要性。
Digital audio compression standard AC-3 algorithm has been applied in a wide range of areas, such as DVD, HDTV, etc., is one of the main technologies for the development of home theater. This paper briefly introduces the characteristics of AC-3 algorithm, the frame structure, the principle of coding and decoding, and points out the necessity of researching related technologies.