通信学报2001，Vol.22Issue(4)：45-50,6.
一种用于3G系统中复杂背景噪声环境下的话音激活检测算法
A novel VAD algorithm applied for 3G system in complex background noise environment
摘要
Abstract
A novel voice activity detection(VAD)algorithm applied for adaptive multi-rate(AMR)CODEC system is discussed in this paper.The algorithm is based on spectral estimation and periodical detection,which uses an IIR filter bank to divide the input speech signal into nine bands from 0 to 4000Hz. Moreover, the levels of speech and background noise are estimated, with the result of pitch and tone detection,the algorithm is robust enough to most kinds of background noise. Finally,the algorithm is simulated in the 3G system platform recommended by ETSI and analyzed in terms of subjective and objective method supported by ITU-T.关键词
话音激活检测/自适应多速率编解码器/复杂背景噪声估计/程度比较定位分类
信息技术与安全科学引用本文复制引用
陈东,赵胜辉,匡镜明..一种用于3G系统中复杂背景噪声环境下的话音激活检测算法[J].通信学报,2001,22(4):45-50,6.
