Complex vibratory patterns in an elephant larynx

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F13%3A33144458" target="_blank" >RIV/61989592:15310/13:33144458 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1242/jeb.091009" target="_blank" >http://dx.doi.org/10.1242/jeb.091009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1242/jeb.091009" target="_blank" >10.1242/jeb.091009</a>

Result language
angličtina
Original language name
Complex vibratory patterns in an elephant larynx
Original language description
Elephants' low-frequency vocalizations are produced by flow-induced self-sustaining oscillations of laryngeal tissue. To date, little is known in detail about the vibratory phenomena in the elephant larynx. Here, we provide a first descriptive report ofthe complex oscillatory features found in the excised larynx of a 25 year old female African elephant (Loxodonta africana), the largest animal sound generator ever studied experimentally. Sound production was documented with high-speed video, acoustic measurements, air flow and sound pressure level recordings. The anatomy of the larynx was studied with computed tomography (CT) and dissections. Elephant CT vocal anatomy data were further compared with the anatomy of an adult human male. We observed numerous unusual phenomena, not typically reported in human vocal fold vibrations. Phase delays along both the inferior-superior and anterior-posterior (A-P) dimension were commonly observed, as well as transverse travelling wave patterns alon
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Project
<a href="/en/project/EE2.3.20.0057" target="_blank" >EE2.3.20.0057: Progress and internationalization of biophysical research at Faculty of Science, Palacky University in Olomouc</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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