A STUDY ON SUB-GLOTTAL VOICE SOURCE BASED ON COMPLEX CEPSTRUM
基于复倒谱的声门下嗓音源研究

Based on the physiology and biophysics of voice-respiration system, the voice production and aerodynamic coupling system can be divided into supra-glottal vocal tract, supra-glottal voice source, vocal cord, sub-glottal voice source, sub-glottal vocal tract, lung, respiratory sound source and lung-thorax sections. Using the voice functions measuring system developed, the transmitted sound signals were acquired. Based on complex cepstrum, the vocal tract vibrations and sub-glottal voice sources of both male and female in chest region were examined. Results showed vocal cord vibration modes and characteristics. It would be one of good methods for measurement of vocal cord vibration characteristics and diagnosis of thorax diseases.