Decay of Non-Diffuse Sound Fields in a Room

Decay of Non-Diffuse Sound Fields in a Room

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 scatterin...

Full description

Bibliographic Details
Main Authors: Novoselova Alena, Kanev Nikolay
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2020/16/matecconf_aso2020_00006.pdf
id doaj-9f24caae3c5046f7ae7a34837d2121d5
record_format Article
spelling doaj-9f24caae3c5046f7ae7a34837d2121d52021-08-05T13:51:14ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013200000610.1051/matecconf/202032000006matecconf_aso2020_00006Decay of Non-Diffuse Sound Fields in a RoomNovoselova Alena0Kanev NikolayBMSTU, Power Engineering DepartmentThe 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.https://www.matec-conferences.org/articles/matecconf/pdf/2020/16/matecconf_aso2020_00006.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Novoselova Alena
Kanev Nikolay
spellingShingle Novoselova Alena
Kanev Nikolay
Decay of Non-Diffuse Sound Fields in a Room
MATEC Web of Conferences
author_facet Novoselova Alena
Kanev Nikolay
author_sort Novoselova Alena
title Decay of Non-Diffuse Sound Fields in a Room
title_short Decay of Non-Diffuse Sound Fields in a Room
title_full Decay of Non-Diffuse Sound Fields in a Room
title_fullStr Decay of Non-Diffuse Sound Fields in a Room
title_full_unstemmed Decay of Non-Diffuse Sound Fields in a Room
title_sort decay of non-diffuse sound fields in a room
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2020-01-01
description 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.
url https://www.matec-conferences.org/articles/matecconf/pdf/2020/16/matecconf_aso2020_00006.pdf
work_keys_str_mv AT novoselovaalena decayofnondiffusesoundfieldsinaroom
AT kanevnikolay decayofnondiffusesoundfieldsinaroom
_version_ 1721220625095196672

Similar Items