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Abstract <p> In this paper, we present a time domain extension of our strategy on manipulatingradiated scalar Helmholtz fields and discuss two important applied scenarios, namely (1) creatingpersonal sound zones inside a bounded domain and (2) shielded localized communication. Ourstrategy is based on the authors’ previous works establishing the possibility and stability ofcontrolling acoustic fields using an array of almost non-radiating coupling sources and presents adetailed Fourier synthesis approach towards a time-domain effect. We require that the array ofacoustic sources creates the desired fields on the control regions while maintaining a zero fieldbeyond a larger circumscribed sphere. This paper recalls the main theoretical results then presentsthe underlying Fourier synthesis paradigm and show, through relevant simulations, theperformance of our strategy.</p>

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Personal Sound Zones and Shielded Localized Communication through Active Acoustic Control

  • 期刊论文

  • 发表日期：

    2025年11月2日

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  • N. J. A. Egarguin,
  • D. Onofrei

摘要

Abstract

In this paper, we present a time domain extension of our strategy on manipulatingradiated scalar Helmholtz fields and discuss two important applied scenarios, namely (1) creatingpersonal sound zones inside a bounded domain and (2) shielded localized communication. Ourstrategy is based on the authors’ previous works establishing the possibility and stability ofcontrolling acoustic fields using an array of almost non-radiating coupling sources and presents adetailed Fourier synthesis approach towards a time-domain effect. We require that the array ofacoustic sources creates the desired fields on the control regions while maintaining a zero fieldbeyond a larger circumscribed sphere. This paper recalls the main theoretical results then presentsthe underlying Fourier synthesis paradigm and show, through relevant simulations, theperformance of our strategy.