DOU Weibei
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- Professor
- Name (Simplified Chinese):DOU Weibei
- Name (English):DOU Weibei
- Business Address:清华大学罗姆楼4-102
- Contact Information:Email: douwb@tsinghua.edu.cn； Tel: 010-62781703
- Degree:Doctoral degree
- Professional Title:Professor
- Alma Mater:电子科技大学学士、法国雷恩大学硕士、法国卡昂大学博士
- Teacher College:DZGCX
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- Selected Publications
A scalable digital audio encoder based on Embedded Zerotree Wavelet
Release time:2021-12-25 Hits:
- Journal:International Conference on Communication TechnologyInternational Conference on Communication Technology
- Abstract: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.
- Co-author:Dong, ZW, Dou, WB,刘光明,刘汐,DOU Weibei
- First Author:Yan, JX,刘光明
- Indexed by:会议论文
- Page Number:1864-1867
- Translation or Not:no
- Date of Publication:2003-04-09