嘶音的三质量块声带模型分析方法  

ANALYSIS OF HOARSE SPEECH SIGNALS BY THREE-MASS MODEL OF VOCAL CORD ACTION

作　　者：张礼和[1] 程启明[1] 

机构地区：[1]杭州大学电子工程系

出　　处：《中国生物医学工程学报》1991年第4期208-214,254,共8页Chinese Journal of Biomedical Engineering

摘　　要：本文论述了声带的三质量块模型,给出它的数学表示式和等效电路,并应用这种模型对病嗓产生的嘶哑语声进行了分析。文中讨论了声带病理因素对三质量块声带模型的物理参数的影响,并应用数字信号处理方法给出了由此产生的嘶哑语声的时域波形和各类谱分布。我们也应用快速付里叶变换、线性预测、倒谱技术、快速余弦变换以及声谱实时伪彩色编码等方法对各类嘶哑语声信号作了分析,并且将所得的实验结果同三质量块声带模型分析法给出的结果进行了比较,结果表明两者相符。<ABSTRACT> In this paper, a three-mass model of vocal cord action as well as ma- thematical cxpression of the model are disscused. Different kinds of typ- ical hoarse speech due to laryngeal diseases are simulated on microcomp- uter and effects of different pathological factors of vocal cord on model paramcters studied. Some typical spectrum distribution of the sumlated speech signals are given. Moreover, hoarse speech signals of some typical cases are analysed by the methods of digital signal processing, including FFT, LPC, cepstrum technique, pseudocolor encoding, etc. The experiment results show that the three-mass model analysis;of vocal cord action is an cfficient method for analysis of hoarse speech signals,

关 键 词：嘶音 三质量块模型 声带 病理学 数字信号处理 

分 类 号：R767.64[医药卫生—耳鼻咽喉科]