Application of Fluctuation Complexity Measure to Speech Endpoint Detection
- VernacularTitle:涨落复杂性测度在语音端点检测中的应用研究
- Author:
Yingle FAN
;
Chuanyan WU
;
Yi LI
;
Quan PANG
- Publication Type:Journal Article
- Keywords:
fluctuation;
complexity;
voice print;
speech endpoint detection;
state space partition
- From:Space Medicine & Medical Engineering
2006;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To find a useful index for real-time detecting of speech endpoint and improving the performance of speech processing under low SNR by analyzing fluctuation complexity of speech signals. Method The influence of state space partition method, window size and partition numbers on detecting performance was analyzed. The comparison experiments of speech signals corresponding to different SNR and noise type was designed using the measure of complexity behaviors based on the information gain.Result It was found that fluctuation complexity was more effective in detecting low-SNR speech than spectral entropy. Conclusion Fluctuation complexity is a valid feature to make speech/non-speech decision for the low SNR cases. The presented method can achieve robust performance and has a good real-time behavior.
