Effect of vocal tract inertance on phonation threshold pressure: theory and measurements

1998 ◽  
Vol 104 (3) ◽  
pp. 1804-1805
Author(s):  
Roger W. Chan ◽  
Ingo R. Titze
Keyword(s):  
Vocal Tract ◽  
Threshold Pressure ◽  
Phonation Threshold Pressure

Phonation threshold pressure and the properties of the vocal tract

2017 ◽  
Vol 141 (5) ◽  
pp. 3581-3581
Author(s):  
Lewis Fulcher ◽  
Alexander Lodemeyer ◽  
Stefan Kniesburges ◽  
George Kaehler ◽  
Michael Doellinger ◽  
...  
Keyword(s):  
Vocal Tract ◽  
Threshold Pressure ◽  
Phonation Threshold Pressure

Effects of Vertical Glottal Duct Length on Intraglottal Pressures and Phonation Threshold Pressure in the Uniform Glottis

2018 ◽  
Vol 32 (1) ◽  
pp. 8-22 ◽  
Author(s):  
Sheng Li ◽  
Ronald C. Scherer ◽  
Lewis P. Fulcher ◽  
Xianbo Wang ◽  
Lijun Qiu ◽  
...  
Keyword(s):  
Threshold Pressure ◽  
Phonation Threshold Pressure

A Meta-Analysis of Outcomes of Hydration Intervention on Phonation Threshold Pressure

2010 ◽  
Vol 24 (6) ◽  
pp. 637-643 ◽  
Author(s):  
Ciara Leydon ◽  
Marcin Wroblewski ◽  
Naomi Eichorn ◽  
Mahalakshmi Sivasankar
Keyword(s):  
Meta Analysis ◽  
Threshold Pressure ◽  
Phonation Threshold Pressure

scholarly journals Vocal Function and Upper Airway Thermoregulation in Five Different Environmental Conditions

2014 ◽  
Vol 57 (1) ◽  
pp. 16-25 ◽  
Author(s):  
Mary J. Sandage ◽  
Nadine P. Connor ◽  
David D. Pascoe
Keyword(s):  
Relative Humidity ◽  
Repeated Measures ◽  
Upper Airway ◽  
Threshold Pressure ◽  
Vocal Function ◽  
Repeated Measures Design ◽  
Repeated Measures Analysis ◽  
C 23 ◽  
Phonation Threshold Pressure ◽  
Perceived Phonatory Effort

Purpose Phonation threshold pressure and perceived phonatory effort were hypothesized to increase and upper airway temperature to decrease following exposure to cold and/or dry air. Greater changes were expected with mouth versus nose breathing. Method In a within-participant repeated measures design, 15 consented participants (7 men, 8 women) completed 20-min duration trials to allow for adequate thermal equilibration for both nose and mouth breathing in 5 different environments: 3 temperatures (°C) matched for relative humidity (% RH), cold (15 °C, 40% RH), thermally neutral (25 °C, 40% RH), and hot (35 °C, 40% RH); and 2 temperatures with variable relative humidity to match vapor pressure for the neutral environment (25 °C, 40% RH), cold (15 °C, 74% RH) and hot (35 °C, 23% RH). Following each equilibration trial, measures were taken in this order: upper airway temperature (transnasal thermistor probe), phonation threshold pressure, and perceived phonatory effort. Results Data were analyzed using repeated measures analysis of variance, and no significant differences were established. Conclusions The study hypotheses were not supported. Findings suggest that the upper airway is tightly regulated for temperature when challenged by a realistic range of temperature and relative humidity environments. This is the first study of its kind to include measurement of upper airway temperature in conjunction with measures of vocal function.

Changes in phonation threshold pressure with induced conditions of hydration

1990 ◽  
Vol 4 (2) ◽  
pp. 142-151 ◽  
Author(s):  
Katherine Verdolini-Marston ◽  
Ingo R. Titze ◽  
David G. Druker
Keyword(s):  
Threshold Pressure ◽  
Phonation Threshold Pressure

Glottal geometry and phonation threshold pressure in a vocal fold physical model.

1996 ◽  
Vol 99 (4) ◽  
pp. 2471-2500 ◽  
Author(s):  
Roger W. Chan ◽  
Ingo R. Titze ◽  
Michael R. Titze
Keyword(s):  
Physical Model ◽  
Vocal Fold ◽  
Threshold Pressure ◽  
Phonation Threshold Pressure
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