Journal article
Vocalization with semi-occluded airways is favorable for optimizing sound production
PLoS computational biology, Vol.17(3), pp.e1008744-e1008744
03/01/2021
DOI: 10.1371/journal.pcbi.1008744
PMCID: PMC8031921
PMID: 33780433
Abstract
Vocalization in mammals, birds, reptiles, and amphibians occurs with airways that have wide openings to free-space for efficient sound radiation, but sound is also produced with occluded or semi-occluded airways that have small openings to free-space. It is hypothesized that pressures produced inside the airway with semi-occluded vocalizations have an overall widening effect on the airway. This overall widening then provides more opportunity to produce wide-narrow contrasts along the airway for variation in sound quality and loudness. For human vocalization described here, special emphasis is placed on the epilaryngeal airway, which can be adjusted for optimal aerodynamic power transfer and for optimal acoustic source-airway interaction. The methodology is three-fold, (1) geometric measurement of airway dimensions from CT scans, (2) aerodynamic and acoustic impedance calculation of the airways, and (3) simulation of acoustic signals with a self-oscillating computational model of the sound source and wave propagation.
Details
- Title: Subtitle
- Vocalization with semi-occluded airways is favorable for optimizing sound production
- Creators
- Ingo R Titze - University of UtahAnil Palaparthi - University of UtahKarin Cox - Voice of AmericaAmanda Stark - University of UtahLynn Maxfield - University of UtahBrian Manternach - University of Utah
- Resource Type
- Journal article
- Publication Details
- PLoS computational biology, Vol.17(3), pp.e1008744-e1008744
- DOI
- 10.1371/journal.pcbi.1008744
- PMID
- 33780433
- PMCID
- PMC8031921
- NLM abbreviation
- PLoS Comput Biol
- ISSN
- 1553-734X
- eISSN
- 1553-7358
- Grant note
- R01 DC013573 / NIDCD NIH HHS
- Language
- English
- Date published
- 03/01/2021
- Academic Unit
- School of Music; Communication Sciences and Disorders
- Record Identifier
- 9984719748402771
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