WAVE-FLOW INDEX OF PHONATION
نویسندگان
چکیده
منابع مشابه
Phonation threshold flow measurements in normal and pathological phonation.
OBJECTIVES/HYPOTHESIS Phonation threshold flow (PTF) may provide a tool to assess laryngeal function and could differentiate between normal and pathological voices. Both polyps and nodules contribute to an increased PTF by creating an incomplete glottal closure and increased vocal fold mass and thickness. STUDY DESIGN Prospective study. METHODS The Kay Elemetrics Phonatory Aerodynamic Syste...
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Simulation data are presented from a computer model that combines vocal fold tissue mechanics, laryngeal aerodynamics, and vocal tract acoustics. These simulations are based upon the laws of physics that govern aiflow, vibration of the vocal folds, and wave propagation in the vocal tract, The model has been used to demonstrate self-oscillatory characteristics of the vocal folds and the flow pat...
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The influence of flow separation location on eigenmode synchronization and phonation onset was investigated in a two-dimensional, aeroelastic, continuum model of phonation. A linear stability analysis showed that flow separation played a critical role in initiating eigenmode synchronization and phonation. For a given glottal configuration, a small variation in the flow separation location along...
متن کاملThe effect of the flow mask on phonation
presence of the flow mask affects voice quality. Microphone and flow recordings were inverse filtered and were compared to examine the possible effects of the flow mask. Closing quotient (ClQ), open quotient (OQ) and the amplitude difference between the first and second harmonics (H1-H2) were the parameters used to characterise the inverse filtered signals. The presence of the flow mask used fo...
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One of the most intriguing aspects of phonetic science is the number of distinguishable layers within the speech signal. Within even a single segment, such as a vowel, speakers control vowel quality, duration, F0, speech style, and so forth. Listeners, in turn, have learned to pay attention to these different acoustic layers in order to extract meaningful information from the speech signal. Pho...
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ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1983
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.86.958