Individual Variation in Vocal Tract Resonance May Assist Oilbirds in Recognizing Echoes of Their Own Sonar Clicks

Autor:	Roderick A. Suthers, Dwight H. Hector
Rok vydání:	1988
Předmět:	geography Variation (linguistics) Formant geography.geographical_feature_category Acoustics Human echolocation Vocal tract resonance Repetition (music) Sonar Vocal tract Geology Sound (geography)
Zdroj:	Animal Sonar ISBN: 9781468474954
DOI:	10.1007/978-1-4684-7493-0_9
Popis:	Oilbirds, Steatornis caripensis, live in colonies in caves, within which they navigate by echolocation (Griffin 1953, Snow 1961). The sonar “clicks” of these nocturnal birds typically last about 40 to 80 ms and are emitted at repetition rates up to about 12/s. Most of the acoustic energy lies beween 1 and 15 kHz. Sound during some clicks is continuous but other clicks, here referred to as double clicks, are divided by a silent period lasting about 20–30 ms into two brief bursts of sound.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d91c18eff5e10e97e5252d3899ef0d2f https://doi.org/10.1007/978-1-4684-7493-0_9 Zobrazit plný text záznamu