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Convention Paper

Delayless Method to Suppress Transient Noise Using Speech Properties and Spectral Coherence

Authors: Zheng, Chengshi; Chen, Xiaoliang; Wang, Shiwei; Peng, Renhua; Li, Xiaodong

AES Convention 135 · Paper 8979 · October 2013

Abstract

This paper proposes a novel delayless transient noise reduction method that is based on speech properties and spectral coherence. The proposed method has three stages. First, the transient noise components are detected in each subband by using energy-normalized variance. Second, we apply the harmonic property of the voiced speech and the continuity of the speech signal to reduce speech distortion in voiced speech segments. Third, we define a new spectral coherence to distinguish the unvoiced speech from the transient noise to avoid suppressing the unvoiced speech. Compared with those existing methods, the proposed method is computationally efficient and casual. Experimental results show that the proposed algorithm can effectively suppress transient noise up to 30 dB without introducing audible speech distortion.

Details

Published in
AES Convention 135
AES Convention
135
Paper number
8979
Publication date
October 6, 2013
Session subject
Signal Processing
Affiliation
Chinese Academy of Sciences, Beijing, China; Chinese Academy of Sciences, Shanghai, China (See document for exact affiliation information.)
Type
Convention Paper