【Title】Objective evaluation of cleft palate speech based on analyzing plosive consonants

【Author】HU Qi~(1,2) ZHAO Qingwei~2 MA Lian~3 YAN Yonghong~2 (1 Institute of Information Science,Beijing Jiaotong University Beijing 100044) (2 Key Laboratory of Speech Acoustics and Content,Understanding,Institute of Acoustics Chinese Academy of Sciences Beijing 100190) (3 Peking University School of Stomatology Beijing 100081)

【Abstract】An objective method,using a multi-band analysis technique,was proposed for analyzing plosive consonants in cleft palate speech.At first,the speech signal is decomposed in frequency domain using an auditory filter-bank.Then,the sample-based features,namely cumulative energy and its increment speed.in each band were computed.Finally,using principle component analysis,these features were fused into one combined feature vector for assessment. Since the algorithm is based on perceptual properties of human auditory ear using non-uniform and multi-band analysis,the improvements of the consistence between the proposed approach and subjective evaluation are obtained.