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音频信号数字化后的数据量相当惊人，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。文中介绍了国内外现有的一些音频压缩技术，对其中重要的压缩算法进行了研究分析。
After digitizing audio signals, the amount of data is quite staggering, which is not conducive to transmission and storage. Digital audio compression has become one of the key technologies in the increasingly widely used digital technologies. In this paper, some existing audio compression techniques at home and abroad are introduced, and some important compression algorithms are studied and analyzed.