Multi-domain speech compression based on wavelet packet transform

作     者：Wu, XD Li, YM Chen, HY 

作者机构：Tsing Hua Univ Inst Microelect Beijing 100084 Peoples R China 

出 版 物：《ELECTRONICS LETTERS》 (电子学快报)

年 卷 期：1998年第34卷第2期

页      面：154-155页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：wavelet transforms multi-domain speech compression audio signals audio coding Integral transforms data compression energy distribution time-frequency resolutions Codes speech coding Speech and audio signal processing Information theory Signal processing and detection 2 kbit/s wavelet packet transform 

摘      要：The authors present a multi-domain speech compression method based on a wavelet packet transform. The signals are compressed in domains with different time-frequency resolutions according to their energy distribution in these domains. It is shown that this method is simple to implement and is effective at compressing speech and audio signals, even at bit rates as low as 2kbit/s.