Importance of near- and far-field coupling for the synchronization of organ pipes
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866908292763090944 |
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| author | Sawicki, Jakub |
| author_facet | Sawicki, Jakub |
| contents | The synchronization of coupled organ pipes represents a nonlinear phenomenon with significant implications for both musical acoustics and nonlinear dynamics. This study investigates the coupling mechanisms governing synchronization, employing a theoretical framework based on delay-coupled Van der Pol oscillators. The oscillatory behavior of individual organ pipes is modeled as a self-sustained system driven by an air jet interacting with the pipe resonator. By incorporating experimental data and numerical simulations, we analyze the impact of finite separation between coupled pipes, introducing time-delayed interactions in the coupling function. Our findings reveal that synchronization can enhance pitch stability but may also induce sound attenuation due to destructive interference, particularly in prospect pipes. A key focus of this study is the decomposition of the coupling mechanism into near-field and far-field components, each contributing differently to the overall synchronization dynamics. Through bifurcation analysis and Arnold tongue characterization, we demonstrate how distance-dependent interactions influence the stability and frequency locking of coupled oscillators. The Fast Fourier Transform (FFT) is employed to extract spectral features from numerical data, ensuring precise comparison with experiments. Our results show strong qualitative agreement between modeled and observed synchronization effects, highlighting the importance of nonlinear coupling in organ pipe acoustics. This investigation advances the understanding of mutual interactions in coupled acoustic oscillators and provides a refined theoretical basis for predicting synchronization phenomena in complex aerodynamically driven systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_00556 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Importance of near- and far-field coupling for the synchronization of organ pipes Sawicki, Jakub Adaptation and Self-Organizing Systems The synchronization of coupled organ pipes represents a nonlinear phenomenon with significant implications for both musical acoustics and nonlinear dynamics. This study investigates the coupling mechanisms governing synchronization, employing a theoretical framework based on delay-coupled Van der Pol oscillators. The oscillatory behavior of individual organ pipes is modeled as a self-sustained system driven by an air jet interacting with the pipe resonator. By incorporating experimental data and numerical simulations, we analyze the impact of finite separation between coupled pipes, introducing time-delayed interactions in the coupling function. Our findings reveal that synchronization can enhance pitch stability but may also induce sound attenuation due to destructive interference, particularly in prospect pipes. A key focus of this study is the decomposition of the coupling mechanism into near-field and far-field components, each contributing differently to the overall synchronization dynamics. Through bifurcation analysis and Arnold tongue characterization, we demonstrate how distance-dependent interactions influence the stability and frequency locking of coupled oscillators. The Fast Fourier Transform (FFT) is employed to extract spectral features from numerical data, ensuring precise comparison with experiments. Our results show strong qualitative agreement between modeled and observed synchronization effects, highlighting the importance of nonlinear coupling in organ pipe acoustics. This investigation advances the understanding of mutual interactions in coupled acoustic oscillators and provides a refined theoretical basis for predicting synchronization phenomena in complex aerodynamically driven systems. |
| title | Importance of near- and far-field coupling for the synchronization of organ pipes |
| topic | Adaptation and Self-Organizing Systems |
| url | https://arxiv.org/abs/2504.00556 |