Bilateral source acoustic interaction in a syrinx model of an oscine bird.
The bilateral simultaneous generation of sound in some oscine songbirds leads to complex sounds that cannot be described in terms of a superposition of the isolated sources alone. In this work, we study the appearance of complex solutions in a model for the acoustic interaction between the two sound sources in birdsong. The origin of these complex oscillations can be traced to the nonlinear mode-mode interaction arising when both sources are active. As an example, we analyze a remarkable sound produced by an oscine songbird and show that the proposed dynamical scenario is compatible with the observed behavior.
Laje
Rodrigo
R
Departamento de Física, FCEN, Universidad de Buenos Aires, Pabellón I, Ciudad Universitaria-C1428EGA, Buenos Aires, Argentina. rodrigo@df.uba.ar
Sciamarella
Denisse
D
Zanella
Juan
J
Mindlin
Gabriel B
GB
D000818:Animals; D001683:Biological Clocks / Q000502:physiology*; D003198:Computer Simulation; D007830:Larynx / Q000502:physiology*; D008954:Models, Biological; D020308:Songbirds / Q000502:physiology*; D013018:Sound Spectrography / Q000379:methods*; D014828:Vocalization, Animal / Q000502:physiology*