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Speech endpoint detection in low-SNRs environment based on perception spectrogram structure boundary parameter 被引量:9
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作者 WU Di ZHAO Heming +4 位作者 HUANG Chengwei XIAO Zhongzhe ZHANG Xiaojun XU Yishen TAO Zhi 《Chinese Journal of Acoustics》 2014年第4期428-440,共13页
The Perception Spectrogram Structure Boundary(PSSB)parameter is proposed for speech endpoint detection as a preprocess of speech or speaker recognition.At first a hearing perception speech enhancement is carried out... The Perception Spectrogram Structure Boundary(PSSB)parameter is proposed for speech endpoint detection as a preprocess of speech or speaker recognition.At first a hearing perception speech enhancement is carried out.Then the two-dimensional enhancement is performed upon the sound spectrogram according to the difference between the determinacy distribution characteristic of speech and the random distribution characteristic of noise.Finally a decision for endpoint was made by the PSSB parameter.Experimental results show that,in a low SNR environment from-10 dB to 10 dB,the algorithm proposed in this paper may achieve higher accuracy than the extant endpoint detection algorithms.The detection accuracy of 75.2%can be reached even in the extremely low SNR at-10 dB.Therefore it is suitable for speech endpoint detection in low-SNRs environment. 展开更多
关键词 Speech endpoint detection in low-SNRs environment based on perception spectrogram structure boundary parameter
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Perception of prosodic structure of Chinese sentence
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作者 YANG Yufang (Institute of Psychology, Chinese Academy of Sciences Beijing 100012) 《Chinese Journal of Acoustics》 1997年第3期236-249,共14页
The perceptual representation of the prosodic structure of Chinese sentences was constructed statistically by using the method of multidimensional scaling analysis on the basis of the result of a discrimination experi... The perceptual representation of the prosodic structure of Chinese sentences was constructed statistically by using the method of multidimensional scaling analysis on the basis of the result of a discrimination experiment, in which listeners were asked to compare perceptual distances between two adjacent syllables in each of six sentences. Listeners' ability to resolve levels of prosodic hierarchy and the relationship between the prosodic and syntactic structures were discussed in relation to perceptual representations. 展开更多
关键词 Perception of prosodic structure of Chinese sentence MDS
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