Characteristics of air puffs produced in English 'pa': Experiments and simulations (2009)

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Type of Content
Journal ArticlePublisher
Acoustical Society of America (ASA)ISSN
0001-49661520-8524
Language
EnglishCollections
Abstract
Three dimensional large eddy simulations, microphone "pop" measurements, and high-speed videos of the airflow and lip opening associated with the syllable "pa" are presented. In the simulations, the mouth is represented by a narrow static ellipse with a back pressure dropping to 110th of its initial value within 60 ms of the release. The simulations show a jet penetration rate that falls within range of the pressure front of microphone pop. The simulations and high-speed video experiments were within 20% agreement after 40 ms, with the video experiments showing a slower penetration rate than the simulations during the first 40 ms. Kinematic measurements indicate that rapid changes in lip geometry during the first 40 ms underlie this discrepancy. These findings will be useful for microphone manufacturers, sound engineers, and researchers in speech aerodynamics modeling and articulatory speech synthesis.
Citation
Derrick D, Anderson P, Gick B, Green S (2009). Characteristics of air puffs produced in English 'pa': Experiments and simulations. Journal of the Acoustical Society of America. 125(4). 2272-2281.This citation is automatically generated and may be unreliable. Use as a guide only.
Keywords
Lip; Humans; Sound Spectrography; Speech; Pressure; Time Factors; Phonetics; Computer Simulation; Video Recording; Male; Biomechanical PhenomenaANZSRC Fields of Research
47 - Language, communication and culture::4704 - LinguisticsRelated items
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