A Speech Endpoint Detection Algorithm Based on Entropy and RBF Neural Network

2007 ◽  
Author(s):  
Xueying Zhang ◽  
Gaoyun Li ◽  
Feng Qiao
Keyword(s):  
Neural Network ◽  
Rbf Neural Network ◽  
Detection Algorithm ◽  
Endpoint Detection ◽  
Speech Endpoint Detection

scholarly journals An Improved Speech Segmentation and Clustering Algorithm Based on SOM and K-Means

2020 ◽  
Vol 2020 ◽  
pp. 1-19
Author(s):  
Nan Jiang ◽  
Ting Liu
Keyword(s):  
Neural Network ◽  
Clustering Algorithm ◽  
Speech Segmentation ◽  
Endpoint Detection ◽  
Number Of Clusters ◽  
Initial Cluster ◽  
Neural Network Algorithm ◽  
Speech Endpoint Detection ◽  
Double Threshold ◽  
Self Organizing

This paper studies the segmentation and clustering of speaker speech. In order to improve the accuracy of speech endpoint detection, the traditional double-threshold short-time average zero-crossing rate is replaced by a better spectrum centroid feature, and the local maxima of the statistical feature sequence histogram are used to select the threshold, and a new speech endpoint detection algorithm is proposed. Compared with the traditional double-threshold algorithm, it effectively improves the detection accuracy and antinoise in low SNR. The k-means algorithm of conventional clustering needs to give the number of clusters in advance and is greatly affected by the choice of initial cluster centers. At the same time, the self-organizing neural network algorithm converges slowly and cannot provide accurate clustering information. An improved k-means speaker clustering algorithm based on self-organizing neural network is proposed. The number of clusters is predicted by the winning situation of the competitive neurons in the trained network, and the weights of the neurons are used as the initial cluster centers of the k-means algorithm. The experimental results of multiperson mixed speech segmentation show that the proposed algorithm can effectively improve the accuracy of speech clustering and make up for the shortcomings of the k-means algorithm and self-organizing neural network algorithm.

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