An adaptive window switching method for ITU-T G.719 transient coding in TDA Domain

Jing Wang*, Bo Chen, Hailong He, Shenghui Zhao, Jingming Kuang

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The paper proposes an adaptive window switching method based on Time Domain Aliasing (TDA) signal to improve the performance of ITU-T G.719 transient audio coding. As to the transient frame, the TDA output signal is analyzed with variable window length to obtain optimal time-frequency resolution. An optimal window switching mode is selected by means of open-loop transient position marking and closed-loop mode selection. Experiment results show that the proposed method can reduce the pre-echo artifacts of G.719 transient coding while maintain better time-frequency analysis effect than the fixed window switching method.

源语言英语
主期刊名IET 3rd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2010
298-301
页数4
版本569 CP
DOI
出版状态已出版 - 2010
活动IET 3rd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2010 - Beijing, 中国
期限: 26 9月 201029 9月 2010

出版系列

姓名IET Conference Publications
编号569 CP
2010

会议

会议IET 3rd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2010
国家/地区中国
Beijing
时期26/09/1029/09/10

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