Observable effects of sound source-tract coupling
Birdsong is a complex phenomenon, generated by a nonlinear vocal device capable of displaying complex solutions even under simple physiological motor commands. The variety of morphologies among bird species makes it an ideal model to study phenomena associated to the production of complex vocalizati...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_97816183_v1_n_p887_Arneodo |
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todo:paper_97816183_v1_n_p887_Arneodo2023-10-03T16:44:22Z Observable effects of sound source-tract coupling Arneodo, E.M. Perl, Y.S. Mindlin, G.B. Acoustic effects Acoustic features Bird species Complex solution Complex sounds Delay differential equations Ideal model Motor commands Oscillatory solutions Parameter spaces Sound production Sound source Vocal-tracts Acoustics Bioacoustics Birds Differential equations Mathematical models Acoustic generators Birdsong is a complex phenomenon, generated by a nonlinear vocal device capable of displaying complex solutions even under simple physiological motor commands. The variety of morphologies among bird species makes it an ideal model to study phenomena associated to the production of complex vocalizations. In the way of understanding how these varied, complex sounds are produced in the vocal organ, little has been learned about the acoustic effects introduced by the interaction between a sound source and a vocal tract. Inspired in the sound production mechanisms of songbirds, we propose a mathematical model of a vocal organ, in which a simple sound source interacts with a tract, leading to a delay differential equation. We explore this system numerically, focusing on the regions in parameter space where the frequencies of the oscillatory solutions of the uncoupled source are close to the resonances of the tract. In this way, we search for effects introduced by the soure-tract coupling which are observable in the acoustic features of the vocalizations produced in the system. By studying the system analytically, we put these effects in the context of the nonlinear dynamics of the model. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_97816183_v1_n_p887_Arneodo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Acoustic effects Acoustic features Bird species Complex solution Complex sounds Delay differential equations Ideal model Motor commands Oscillatory solutions Parameter spaces Sound production Sound source Vocal-tracts Acoustics Bioacoustics Birds Differential equations Mathematical models Acoustic generators |
| spellingShingle |
Acoustic effects Acoustic features Bird species Complex solution Complex sounds Delay differential equations Ideal model Motor commands Oscillatory solutions Parameter spaces Sound production Sound source Vocal-tracts Acoustics Bioacoustics Birds Differential equations Mathematical models Acoustic generators Arneodo, E.M. Perl, Y.S. Mindlin, G.B. Observable effects of sound source-tract coupling |
| topic_facet |
Acoustic effects Acoustic features Bird species Complex solution Complex sounds Delay differential equations Ideal model Motor commands Oscillatory solutions Parameter spaces Sound production Sound source Vocal-tracts Acoustics Bioacoustics Birds Differential equations Mathematical models Acoustic generators |
| description |
Birdsong is a complex phenomenon, generated by a nonlinear vocal device capable of displaying complex solutions even under simple physiological motor commands. The variety of morphologies among bird species makes it an ideal model to study phenomena associated to the production of complex vocalizations. In the way of understanding how these varied, complex sounds are produced in the vocal organ, little has been learned about the acoustic effects introduced by the interaction between a sound source and a vocal tract. Inspired in the sound production mechanisms of songbirds, we propose a mathematical model of a vocal organ, in which a simple sound source interacts with a tract, leading to a delay differential equation. We explore this system numerically, focusing on the regions in parameter space where the frequencies of the oscillatory solutions of the uncoupled source are close to the resonances of the tract. In this way, we search for effects introduced by the soure-tract coupling which are observable in the acoustic features of the vocalizations produced in the system. By studying the system analytically, we put these effects in the context of the nonlinear dynamics of the model. |
| format |
CONF |
| author |
Arneodo, E.M. Perl, Y.S. Mindlin, G.B. |
| author_facet |
Arneodo, E.M. Perl, Y.S. Mindlin, G.B. |
| author_sort |
Arneodo, E.M. |
| title |
Observable effects of sound source-tract coupling |
| title_short |
Observable effects of sound source-tract coupling |
| title_full |
Observable effects of sound source-tract coupling |
| title_fullStr |
Observable effects of sound source-tract coupling |
| title_full_unstemmed |
Observable effects of sound source-tract coupling |
| title_sort |
observable effects of sound source-tract coupling |
| url |
http://hdl.handle.net/20.500.12110/paper_97816183_v1_n_p887_Arneodo |
| work_keys_str_mv |
AT arneodoem observableeffectsofsoundsourcetractcoupling AT perlys observableeffectsofsoundsourcetractcoupling AT mindlingb observableeffectsofsoundsourcetractcoupling |
| _version_ |
1782025656142397440 |