Decay of Non-Diffuse Sound Fields in a Room-Reference-Cited by-同舟云学术

Decay of Non-Diffuse Sound Fields in a Room

Published:2020 Issue: Volume:320 Page:00006
ISSN:2261-236X
Container-title:MATEC Web of Conferences
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Short-container-title:MATEC Web Conf.

Author:

Novoselova Alena,Kanev Nikolay

Abstract

The paper presents the results of a study of a non-diffuse sound field decay in a room. In a laboratory experiment, a model of a room in the form of a rectangular parallelepiped with a size of 0.7 x 0.4 x 0.4 m is used. Two non-parallel walls are coated with sound absorbing material. Sound scattering elements can be placed on the third wall which is perpendicular to the absorbing ones, which allows to change the field diffusion degree. The sound field in such a room has a strong anisotropy, its energy decays according to the exponential-power law. Sound decay curves were measured at various positions of the sound source and microphone at frequencies of 4 kHz. The decay curves are compared, their dependence on the relative position of the sound source and microphone is analyzed.

Publisher

EDP Sciences

Subject

General Medicine

Link

https://www.matec-conferences.org/10.1051/matecconf/202032000006/pdf

Reference22 articles.

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