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个人信息Personal Information
教授
教师英文名称：DOU Weibei
教师拼音名称：douweibei
办公地点：清华大学罗姆楼4-102
联系方式：Email: douwb@tsinghua.edu.cn； Tel: 010-62781703
学位：博士学位
毕业院校：电子科技大学学士、法国雷恩大学硕士、法国卡昂大学博士
A scalable digital audio encoder based on Embedded Zerotree Wavelet
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发表刊物：International Conference on Communication TechnologyInternational Conference on Communication Technology
摘要：In this paper, a scalable audio compressing scheme is presented, which is mainly based on an Embedded Zerotree Wavelet (EZW) coding technology. Firstly, 29 critical subbands are obtained by splitting audio signals with a Digital Wavelet Package Transform (DWPT). Then, a Zerotree coding is acted on these subbands. Lastly, an entropy coding is applied to remove redundancy and a specific frame structure is formed. The resulting encoder can support a scalable bit stream from 16kbps to 64kbps with a 4kbps step size for a single audio channel and the graceful degeneration of subjective audio quality can also be provided.
合写作者：Dong, ZW, Dou, WB,刘光明,刘汐,窦维蓓
第一作者：Yan, JX,刘光明
论文类型：会议论文
页面范围：1864-1867
是否译文：否
发表时间：2003-04-09