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Non-linear coupling in two non-linear delayed acoustic resonatorsa).

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Title: Non-linear coupling in two non-linear delayed acoustic resonatorsa).
Authors: Reda, Jana1 (AUTHOR), Fink, Mathias1 (AUTHOR), Lemoult, Fabrice1 (AUTHOR) fabrice.lemoult@espci.fr
Source: Journal of the Acoustical Society of America. Sep2025, Vol. 158 Issue 3, p2130-2137. 8p.
Subjects: Acoustic resonators, Resonance, Auditory perception, Audio acoustics, Coherence (Physics), Bifurcation theory
Abstract: Building on our previous work on a Hopf resonator that mimics the cochlear amplifier from Reda, Fink, and Lemoult [(2023). Europhys. Lett. 144(3), 37001], we now turn to the fact that the inner ear comprises thousands of such resonators, which interact through coupling mechanisms. To gain insight into these interactions, we investigate the coupling of two acoustic resonators with slightly detuned resonance frequencies, interacting through time-delayed feedback loops. By modulating the gain of the loop and the coupling strength, we demonstrate the emergence of frequency synchronization at low amplitudes and bifurcations leading to desynchronization at higher amplitudes. This tunable non-linear interaction offers insights into resonance phenomena in coupled systems, with potential implications for auditory modeling and complex acoustic systems. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 188360428
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Non-linear coupling in two non-linear delayed acoustic resonatorsa).
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  Data: <searchLink fieldCode="AR" term="%22Reda%2C+Jana%22">Reda, Jana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fink%2C+Mathias%22">Fink, Mathias</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lemoult%2C+Fabrice%22">Lemoult, Fabrice</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fabrice.lemoult@espci.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+Acoustical+Society+of+America%22">Journal of the Acoustical Society of America</searchLink>. Sep2025, Vol. 158 Issue 3, p2130-2137. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Acoustic+resonators%22">Acoustic resonators</searchLink><br /><searchLink fieldCode="DE" term="%22Resonance%22">Resonance</searchLink><br /><searchLink fieldCode="DE" term="%22Auditory+perception%22">Auditory perception</searchLink><br /><searchLink fieldCode="DE" term="%22Audio+acoustics%22">Audio acoustics</searchLink><br /><searchLink fieldCode="DE" term="%22Coherence+%28Physics%29%22">Coherence (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Bifurcation+theory%22">Bifurcation theory</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Building on our previous work on a Hopf resonator that mimics the cochlear amplifier from Reda, Fink, and Lemoult [(2023). Europhys. Lett. 144(3), 37001], we now turn to the fact that the inner ear comprises thousands of such resonators, which interact through coupling mechanisms. To gain insight into these interactions, we investigate the coupling of two acoustic resonators with slightly detuned resonance frequencies, interacting through time-delayed feedback loops. By modulating the gain of the loop and the coupling strength, we demonstrate the emergence of frequency synchronization at low amplitudes and bifurcations leading to desynchronization at higher amplitudes. This tunable non-linear interaction offers insights into resonance phenomena in coupled systems, with potential implications for auditory modeling and complex acoustic systems. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the Acoustical Society of America is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1121/10.0038955
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      – Code: eng
        Text: English
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      – SubjectFull: Acoustic resonators
        Type: general
      – SubjectFull: Resonance
        Type: general
      – SubjectFull: Auditory perception
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      – SubjectFull: Audio acoustics
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      – SubjectFull: Coherence (Physics)
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      – SubjectFull: Bifurcation theory
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      – TitleFull: Non-linear coupling in two non-linear delayed acoustic resonatorsa).
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            NameFull: Reda, Jana
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            NameFull: Fink, Mathias
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            NameFull: Lemoult, Fabrice
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            – D: 01
              M: 09
              Text: Sep2025
              Type: published
              Y: 2025
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