Formation of local quiet zones using the length-limited parametric array loudspeaker
Formation of local quiet zones using the length-limited parametric array loudspeaker
This paper presents a preliminary numerical study on the formation of local quiet zones using the length-limited parametric array loudspeaker (PAL). The PAL is a directional sound device using the nonlinear acoustic effect to generate an audio beam in air. The length-limited PAL aims to control the length of the audio beam by using two different ultrasonic carriers. The sound propagation curve and radiation pattern of the length-limited PAL are theoretically distinct from those of the conventional loudspeaker. Therefore, the local quiet zones formed by the length-limited PAL is of sufficient interest before any practical deployment of the length-limited PAL in active noise control (ANC). For comparison, the local quiet zones formed by the conventional loudspeaker and the normal PAL are also obtained and examined in the numerical simulation.
55-60
Wang, Yue
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Li, Ruicong
88b299af-4b6e-4907-a8d8-b99a64eec7de
Shi, Chuang
c46f72bd-54c7-45ee-ac5d-285691fccf81
Li, Youxin
cca2571d-3e46-4737-8891-e0bf3dcfdc93
Wang, Yue
40d832b2-d9c7-4f8c-93e3-56fca7275658
Li, Ruicong
88b299af-4b6e-4907-a8d8-b99a64eec7de
Shi, Chuang
c46f72bd-54c7-45ee-ac5d-285691fccf81
Li, Youxin
cca2571d-3e46-4737-8891-e0bf3dcfdc93
Wang, Yue, Li, Ruicong, Shi, Chuang and Li, Youxin
(2019)
Formation of local quiet zones using the length-limited parametric array loudspeaker.
Ochmann, Martin, Vorländer, Michael and Fels, Janina
(eds.)
In Proceedings Of The 23rd International Congress on Acoustics : Integrating 4th EAA Euroregio 2019 : 9-13 September 2019 In Aachen, Germany.
RWTH Publications.
.
(doi:10.18154/RWTH-CONV-239239).
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper presents a preliminary numerical study on the formation of local quiet zones using the length-limited parametric array loudspeaker (PAL). The PAL is a directional sound device using the nonlinear acoustic effect to generate an audio beam in air. The length-limited PAL aims to control the length of the audio beam by using two different ultrasonic carriers. The sound propagation curve and radiation pattern of the length-limited PAL are theoretically distinct from those of the conventional loudspeaker. Therefore, the local quiet zones formed by the length-limited PAL is of sufficient interest before any practical deployment of the length-limited PAL in active noise control (ANC). For comparison, the local quiet zones formed by the conventional loudspeaker and the normal PAL are also obtained and examined in the numerical simulation.
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e-pub ahead of print date: 9 September 2019
Venue - Dates:
23rd International Congress on Acoustics: Integrating 4th EAA Euroregio, ICA 2019, , Aachen, Germany, 2019-09-09 - 2019-09-23
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Local EPrints ID: 484243
URI: http://eprints.soton.ac.uk/id/eprint/484243
PURE UUID: ec9d3d77-cfdb-4caa-8272-ba8c4671ae04
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Date deposited: 13 Nov 2023 18:43
Last modified: 18 Mar 2024 04:13
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Contributors
Author:
Yue Wang
Author:
Ruicong Li
Author:
Chuang Shi
Author:
Youxin Li
Editor:
Martin Ochmann
Editor:
Michael Vorländer
Editor:
Janina Fels
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