Does loudspeaker directivity really influence the reconstructed indoor temperature quality using Acoustic travel-time TOMography?

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2024-11-25 DOI:10.1016/j.apacoust.2024.110419

Cherif Othmani, Mehmet Sait Özer, Sebastian Merchel, M.Ercan Altinsoy

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引用次数: 0

Abstract

A recent published work by (Othmani et al. 2024) showed that an indoor temperature field can be efficiently reconstructed using Acoustic travel-time TOMography (ATOM) without considering the directivity of the loudspeaker. Strictly speaking, in the work of (Othmani et al. 2024), the W3-315E loudspeaker was assumed to be omnidirectional rather than directional. This is due to the fact that the ATOM technique is based on predicting the position of the max (so-called time-of-flight (ToF)) in the measured reflectogram rather than the sound energy. Accordingly, the main open question in the present work is “does loudspeaker directivity really influence the indoor reconstructed field?”. Thus, a comparison of the reconstructed indoor temperature in the work of (Othmani et al. 2024) with an approximation of an omnidirectional loudspeaker and the present results (with angle directivity of ± 30°) answers this need and sets forth to explore the influences of the loudspeaker directivity on the reconstructed field quality. Results show that the temperature discrepancy remains similar for both, whether the directivity of the loudspeaker is taken into account or not.

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扬声器指向性真的会影响使用声学旅行时间 TOMography 重建的室内温度质量吗？

Othmani 等人 2024 年）最近发表的一项研究表明，使用声学旅行时间 TOMography（ATOM）技术可以有效地重建室内温度场，而无需考虑扬声器的指向性。严格来说，在（Othmani 等人，2024 年）的研究中，W3-315E 扬声器被假定为全向性扬声器，而不是指向性扬声器。这是因为 ATOM 技术是基于预测测量反射图中最大值的位置（即所谓的飞行时间 (ToF)），而不是声能。因此，本研究的主要问题是 "扬声器的指向性是否真的会影响室内重建声场？因此，将（Othmani 等人，2024 年）工作中的重建室内温度与全向扬声器近似值和本结果（指向性角度为 ± 30°）进行比较，就能满足这一需求，并着手探索扬声器指向性对重建声场质量的影响。结果表明，无论是否考虑扬声器的指向性，两者的温度差仍然相似。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.