Speech enhancement for nonstationary noise environment

被引：0
|
作者：
Lin, L [1 ]
Ambikairajah, E [1 ]
Holmes, WH [1 ]
机构：
[1] Univ New S Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
APCCAS 2002: ASIA-PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS, VOL 1, PROCEEDINGS | 2002年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A speech denoising technique based on an auditory filterbank is proposed in this paper. The noisy speech is first decomposed by the auditory filterbank into critical band signals. The denoising gain. is calculated from the variance estimate for the subband signal and noise. The time varying subband noise, variance is estimated by tracking the minimum variance of the subband noisy signal. This noise reduction technique is suitable for colored and nonstationary noise environment. It results in naturally sounding speech with a very low level of musical noise.
引用
收藏
页码：177 / 180
页数：4
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