Directionality of dog vocalizations.
The directionality patterns of sound emission in domestic dogs were measured in an anechoic environment using a microphone array. Mainly long-distance signals from four dogs were investigated. The radiation pattern of the signals differed clearly from an omnidirectional one with average differences in sound-pressure level between the frontal and rear position of 3-7 dB depending from the individual. Frequency dependence of directionality was shown for the range from 250 to 3200 Hz. The results indicate that when studying acoustic communication in mammals, more attention should be paid to the directionality pattern of sound emission.
Humboldt University, Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany. karl-heinz.frommolt@rz.hu-berlin.de
Karl-Heinz
KH
Frommolt
Alban
A
Gebler
D000161:Acoustic Stimulation; D000704:Analysis of Variance; D000818:Animals; D001522:Behavior, Animal; D004285:Dogs / Q000502:physiology*; D005260:Female; D008297:Male; D009068:Movement; D013017:Sound Localization; D013018:Sound Spectrography; D014828:Vocalization, Animal