基于正交变换的无损音频压缩  

Lossless Audio Compression based on Orthogonal Transform

作　　者：朱敏[1] 胡剑凌[1] 徐盛[1] 

机构地区：[1]上海交通大学图像通信与信息处理研究所,上海200030

出　　处：《电声技术》2005年第4期51-54,共4页Audio Engineering

摘　　要：介绍了基于正交变换的无损音频编码的技术框架,并对其关键技术即分帧、整数变换和熵编码作了深入的分析,最后将其在性能上与其它预测方案进行比较,结果表明其在压缩比上存在优势。In this paper,whole coding scheme of lossless audio compression based on orthogonal transform is presented,and the key technologies such as framing, integer transform and entropy coding are introduced in detail. Experimental results show that the transform based scheme provides lower bit rates than those of linear prediction based schemes.

关 键 词：无损音频压缩 整数变换 整数改进离散余弦变换 熵编码 

分 类 号：TN912[电子电信—通信与信息系统]