New wavelet packet transform algorithm based on critical bandwidth
Heping Liu · Computer Engineering and Applications Journal · 2012
To solve the problem of information loss under the traditional short-time analysis,a new wavelet packet transform algorithm based on the critical bandwidth is presented.The algorithm utilizes the process of MFCC parameters extraction with the introduction of the concept of critical bandwidth.Based on the GMM speaker recognition system,the experimental results show the performance of the proposed algorithm is better than that of the traditional MFCC parameters in the condition of different wavelet packet functions.