Perceptual Multiband Spectral Subtraction for Noise Reduction in Hearing Aids

被引：0
作者：
Wei, Cheng-Wen [1 ]
Tsai, Cheng-Chun
Chang, Tian-Sheuan
Jou, Shyh-Jye
机构：
[1] Natl Chiao Tung Univ, Dept Elect Engn, 1001 Univ Rd, Hsinchu, Taiwan
来源：
PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS) | 2010年
关键词：
Noise Reduction; Hearing Aids; Low Power Design;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a low complexity noise reduction method by a perceptual multiband spectral subtraction for CIC type hearing aids. The noisy speech is first perceptually decomposed by a 1/3 octave filter bank by ANSI S1.11, and the noise is estimated by an enhanced entropy based voice activity detection (VAD), and then noise is subtracted by a simple multiband spectral subtraction. Simulations show that under different environments the proposed algorithm averagely improves segmental SNR (Signal to Noise Ratio) and PESQ (Perceptual Evaluation of Speech Quality) by 6.27dB and 0.32, respectively, and performs better compared to the previous approach. In addition, informal listening test shows there is not musical noise in the processed speech.
引用
收藏
页码：692 / 695
页数：4
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