Acoustic signatures of sound source-tract coupling
Birdsong is a complex behavior, which results from the interaction between a nervous system and a biomechanical peripheral device. While much has been learned about how complex sounds are generated in the vocal organ, little has been learned about the signature on the vocalizations of the nonlinear...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_15393755_v83_n4_p_Arneodo |
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todo:paper_15393755_v83_n4_p_Arneodo2023-10-03T16:22:36Z Acoustic signatures of sound source-tract coupling Arneodo, E.M. Perl, Y.S. Mindlin, G.B. Acoustic interaction Acoustic signature Bird species Complex behavior Complex sounds Coupled systems Delay differential equations Fundamental frequencies Nonlinear effect Nonlinear features Oscillatory solutions Periodic solution Peripheral devices Sound production Sound source Underlying mechanism Vocal-tracts Behavioral research Biomechanics Birds Differential equations Mathematical models Speech processing Acoustic generators Birdsong is a complex behavior, which results from the interaction between a nervous system and a biomechanical peripheral device. While much has been learned about how complex sounds are generated in the vocal organ, little has been learned about the signature on the vocalizations of the nonlinear effects introduced by the acoustic interactions between a sound source and the vocal tract. The variety of morphologies among bird species makes birdsong a most suitable model to study phenomena associated to the production of complex vocalizations. Inspired by the sound production mechanisms of songbirds, in this work we study 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 the system numerically, and by taking it to the weakly nonlinear limit, we are able to examine its periodic solutions analytically. By these means we are able to explore the dynamics of oscillatory solutions of a sound source-tract coupled system, which are qualitatively different from those of a sound source-filter model of a vocal organ. Nonlinear features of the solutions are proposed as the underlying mechanisms of observed phenomena in birdsong, such as unilaterally produced "frequency jumps," enhancement of resonances, and the shift of the fundamental frequency observed in heliox experiments. © 2011 American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15393755_v83_n4_p_Arneodo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Acoustic interaction Acoustic signature Bird species Complex behavior Complex sounds Coupled systems Delay differential equations Fundamental frequencies Nonlinear effect Nonlinear features Oscillatory solutions Periodic solution Peripheral devices Sound production Sound source Underlying mechanism Vocal-tracts Behavioral research Biomechanics Birds Differential equations Mathematical models Speech processing Acoustic generators |
| spellingShingle |
Acoustic interaction Acoustic signature Bird species Complex behavior Complex sounds Coupled systems Delay differential equations Fundamental frequencies Nonlinear effect Nonlinear features Oscillatory solutions Periodic solution Peripheral devices Sound production Sound source Underlying mechanism Vocal-tracts Behavioral research Biomechanics Birds Differential equations Mathematical models Speech processing Acoustic generators Arneodo, E.M. Perl, Y.S. Mindlin, G.B. Acoustic signatures of sound source-tract coupling |
| topic_facet |
Acoustic interaction Acoustic signature Bird species Complex behavior Complex sounds Coupled systems Delay differential equations Fundamental frequencies Nonlinear effect Nonlinear features Oscillatory solutions Periodic solution Peripheral devices Sound production Sound source Underlying mechanism Vocal-tracts Behavioral research Biomechanics Birds Differential equations Mathematical models Speech processing Acoustic generators |
| description |
Birdsong is a complex behavior, which results from the interaction between a nervous system and a biomechanical peripheral device. While much has been learned about how complex sounds are generated in the vocal organ, little has been learned about the signature on the vocalizations of the nonlinear effects introduced by the acoustic interactions between a sound source and the vocal tract. The variety of morphologies among bird species makes birdsong a most suitable model to study phenomena associated to the production of complex vocalizations. Inspired by the sound production mechanisms of songbirds, in this work we study 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 the system numerically, and by taking it to the weakly nonlinear limit, we are able to examine its periodic solutions analytically. By these means we are able to explore the dynamics of oscillatory solutions of a sound source-tract coupled system, which are qualitatively different from those of a sound source-filter model of a vocal organ. Nonlinear features of the solutions are proposed as the underlying mechanisms of observed phenomena in birdsong, such as unilaterally produced "frequency jumps," enhancement of resonances, and the shift of the fundamental frequency observed in heliox experiments. © 2011 American Physical Society. |
| format |
JOUR |
| 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 |
Acoustic signatures of sound source-tract coupling |
| title_short |
Acoustic signatures of sound source-tract coupling |
| title_full |
Acoustic signatures of sound source-tract coupling |
| title_fullStr |
Acoustic signatures of sound source-tract coupling |
| title_full_unstemmed |
Acoustic signatures of sound source-tract coupling |
| title_sort |
acoustic signatures of sound source-tract coupling |
| url |
http://hdl.handle.net/20.500.12110/paper_15393755_v83_n4_p_Arneodo |
| work_keys_str_mv |
AT arneodoem acousticsignaturesofsoundsourcetractcoupling AT perlys acousticsignaturesofsoundsourcetractcoupling AT mindlingb acousticsignaturesofsoundsourcetractcoupling |
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1782024364629164032 |