標題: Low Computational Complexity Pitch Based VAD for Dynamic Environment in Hearing Aids
作者: Chen, Yu-Jui
Wei, Cheng-Wen
Meng, Yi-Le
Jou, Shyh-Jye
電機學院
電子工程學系及電子研究所
College of Electrical and Computer Engineering
Department of Electronics Engineering and Institute of Electronics
關鍵字: Voice Activity Detection;Pitch;Dynamic Noise Environment;Hearing Aids;Mandarin Chinese
公開日期: 1-一月-2010
摘要: This paper presents a low computational complexity and high robust voice activity detection (VAD) algorithm. The algorithm is based on an efficient time-domain pitch detection and harmonic structure discrimination exploiting frequency decomposition by 1/3 octave filter bank defined in ANSI S1.11 standard. In addition, a simple yet efficient phoneme keeper (PK) is adopted for the detection of monosyllable languages, such as Mandarin. Simulation results reveal that the proposed VAD has very robust performance for Mandarin speeches in different environments, even for dynamic SNR (signal to noise ratio) and noise type. Furthermore, in white noise with 0dB SNR, the proposed VAD still has about 90 percent accuracy.
URI: http://hdl.handle.net/11536/146410
期刊: 2010 INTERNATIONAL CONFERENCE ON BIO-INSPIRED SYSTEMS AND SIGNAL PROCESSING (ICBSSP 2010)
起始頁: 162
結束頁: 165
顯示於類別:會議論文