ArticleJournal of voice : official journal of the Voice Foundation2025
Aerodynamic and Acoustic Power in Infant Cry.
Article in Journal of voice : official journal of the Voice Foundation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Postnatal development and form-function relationships of the vocal folds in California mice (American journal of physiology. Cell physiology · 2026Article
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1 author.
Funding
Abstract
objectivesAcoustic and aerodynamic powers in infant cry are not scaled downward with body size or vocal tract size. The objective here was to show that high lung pressures and impedance matching are used to produce power levels comparable to those in adults. STUDY DESIGN AND METHODOLOGY: A computational model was used to obtain power distributions along the infant airway. The parameters were cross-sectional areas of the larynx canal and the velar region, which tend to be variable in infant cry when there is no specific vowel structure.
resultsAerodynamic power can reach 1.0 W with 70 cm H
conclusionsInfants are born with the ability to produce high lung pressures to compensate for reduced airflow in a small vocal tract. Airflow impedances are about 100 times higher than in adults. Maximum power transfer from the source to the airway (and ultimately to the listener) appears to be an innate ability.
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