Computer Engineering & Science >
An Adaptive Voice Activity Detection Algorithm in Noisy Environments
Received date: 2010-05-20
Revised date: 2010-09-05
Online published: 2011-01-25
The shortages of shorttime energy based voice activity detection method is analyzed first. Then a shorttime signaltonoise ratio (SNR) estimation method is introduced, and a new adaptive voice activity detection algorithm is proposed based on the design of the adaptive discriminative threshold. Simulations with a lot of Gaussian noisy speech signals ranging from 10dB to 20dB show that the comparatively accurate speech endpoints can be detected by the proposed method in different SNR environments.
LIN Xuemei . An Adaptive Voice Activity Detection Algorithm in Noisy Environments[J]. Computer Engineering & Science, 2011 , 33(1) : 94 -96 . DOI: 10.3969/j.issn.1007130X.2011.
［1］韩立华, 王博, 段淑凤. 语音端点检测技术研究进展［J］. 计算机应用研究, 2010, 27(4):12201226.
［2］Rabiner L R,Sambur M R. An Algorithm for Determining the Endpoints of Isolated Utterances［J］. Bell System Technical Journal, 1975, 54(2):297315.
［3］Taboada J, Feijoo S, Balsa R, et al. Explicit Estimation of Speech Boundaries［J］. IEE Proceedings Science Measurement and Technology, 1994, 141(3):153159.
［4］He Qiang,Zhang Youwei. On Prefiltering and Endpoint Detection of Speech Signal［C］∥Proc of ICSP’98, 1998:749752.
［5］Li Qi, Zheng Jinsong, Tsai A, et al. Robust Endpoint Detection and Energy Normalization for RealTime Speech and Speaker Recognition［J］. IEEE Trans on Speech and Audio Processing, 2002, 10(3):146157.
［6］KyoungHo, Yang TaeYoung, Park KunJung, et al. Robust Voice Activity Detection Algorithm for Estimating Noise Spectrum［J］. Electronics Letters, 2002, 36(2):180181.
［7］Marzinzik M,Kollmeier B. Speech Pause Detection for Noise Spectrum Estimation by Tracking Power Envelope Dynamics［J］. IEEE Trans on Speech and Audio Processing, 2002, 10(2):109118.
［8］Beritelli F, Casale S, Serrano S. A LowComplexity SpeechPause Detection Algorithm for Communication in Noisy Environments［J］. European Trans on Telecommunications, 2004, 15(1):3338.
［9］王博, 郭英, 段艳丽,等. 基于倒谱特征的语音端点检测算法研究［J］. 信号处理, 2005, 21(4A):212215.
/
| 〈 |
|
〉 |