This paper deals about a quantitative and qualitative study of the sustained vibration pat-terns of vocal cords with a mulfifunctional glottograph developed by the authors.The glottogramsand their parameters for the m...This paper deals about a quantitative and qualitative study of the sustained vibration pat-terns of vocal cords with a mulfifunctional glottograph developed by the authors.The glottogramsand their parameters for the modal,falsetto,breathy and pressed voices are presented.This paper al-so sets out to explore the influence of the changes in the properties of the vocal tract andfundamental frequency,on vocal cord vibration.Typical clinical results show that the glottographicmethod may be used in the diagnosis and treatment of laryngeal diseases,phonation physiology andevaluation of artistic voice.展开更多
Aim: The aim is to compare the vocal fold vibration seen during lip and tongue trills with that seen during phonation of the sustained vowel /ε/, in terms of the periodicity of the EGG waveform and the amplitude of t...Aim: The aim is to compare the vocal fold vibration seen during lip and tongue trills with that seen during phonation of the sustained vowel /ε/, in terms of the periodicity of the EGG waveform and the amplitude of the EGG signal, in professional voice users. Study design: This was a quasi-experimental study. Methods: We used electroglottography (EGG) to compare the vocal fold vibration seen during tongue and lip trills with that seen during phonation of the sustained vowel /ε/, in terms of the EGG waveform periodicity and signal amplitude, in 10 classically trained, professional singers. The participants produced the sustained vowel /ε/ and performed tongue and lip trills at the same frequency and intensity. The periodicity of the waveform and the amplitude of the signal were visually analyzed by three blinded, experienced readers. To confirm the visual analysis results, we measured the jitter and shimmer of the signal and the frequency of variation in vocal fold vibration during the trill exercises. Results: The EGG waveform was classified as periodic for the sustained vowel phonation task and as quasi-periodic for the trill exercises, the vibration pattern repeating at approximately 24 Hz. Conclusion: The vibration of the vocal folds was modified according to the supraglottic movement in trills exercises.展开更多
基金The project was supported by the National Natural Science Foundation of China No.6881030
文摘This paper deals about a quantitative and qualitative study of the sustained vibration pat-terns of vocal cords with a mulfifunctional glottograph developed by the authors.The glottogramsand their parameters for the modal,falsetto,breathy and pressed voices are presented.This paper al-so sets out to explore the influence of the changes in the properties of the vocal tract andfundamental frequency,on vocal cord vibration.Typical clinical results show that the glottographicmethod may be used in the diagnosis and treatment of laryngeal diseases,phonation physiology andevaluation of artistic voice.
文摘Aim: The aim is to compare the vocal fold vibration seen during lip and tongue trills with that seen during phonation of the sustained vowel /ε/, in terms of the periodicity of the EGG waveform and the amplitude of the EGG signal, in professional voice users. Study design: This was a quasi-experimental study. Methods: We used electroglottography (EGG) to compare the vocal fold vibration seen during tongue and lip trills with that seen during phonation of the sustained vowel /ε/, in terms of the EGG waveform periodicity and signal amplitude, in 10 classically trained, professional singers. The participants produced the sustained vowel /ε/ and performed tongue and lip trills at the same frequency and intensity. The periodicity of the waveform and the amplitude of the signal were visually analyzed by three blinded, experienced readers. To confirm the visual analysis results, we measured the jitter and shimmer of the signal and the frequency of variation in vocal fold vibration during the trill exercises. Results: The EGG waveform was classified as periodic for the sustained vowel phonation task and as quasi-periodic for the trill exercises, the vibration pattern repeating at approximately 24 Hz. Conclusion: The vibration of the vocal folds was modified according to the supraglottic movement in trills exercises.
