Abstract
This article proposed an approach for detecting the voice change of speakers by employing improved Bayesian Information Criterion(BIC) algorithm in MPEG1-layer3(MP3) compressed domain.According to the process of MFCC calculation in raw audio,a new Mel-Frequency Cepstral Coefficients(MFCC) algorithm by utilizing Modified Discrete Cosine Transform(MDCT) coefficient in MP3 domain was presented.Based on these coefficients,the improved BIC algorithm was employed to decide which point was the voice change point of speakers.The experimental results show that using the MFCC coefficients extracted in MP3 domain for speech segmentation,similar segmentation precision can be obtained as that in uncompressed domain.
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