Issues on the reverberation room method for measuring the scattering coefficients -borther setting and revolution of test sample

Hyojin Lee; Yuzo Tsuchiya; Tetsuya Sakuma

Issues on the reverberation room method for measuring the scattering coefficients -borther setting and revolution of test sample

Hyojin Lee^*
, Yuzo Tsuchiya
, Tetsuya Sakuma

^*Corresponding author for this work

Department of Architectural Engineering

The University of Tokyo

Research output: Contribution to conference › Conference paper › peer-review

4 Scopus citations

Abstract

The reverberation room method for measuring the random-incidence scattering coefficients has been already developed in ISO 17497-1, however there exists some points to be better investigated. One point is that the scattering coefficient could be overestimated by the destructive diffraction from the uneven perimeter of a test sample. Another point is on the limitation of sample rotation, which is employed with a turntable in the continuous measurement of room impulse responses. At this moment, the limitation of the revolution speed is unclear, thus it is not yet specified in the ISO. This paper discusses the effect of border setting and revolution limitation of test samples through 1:4 scale model measurements. The results demonstrated that: 1) edge scattering can be suppressed by border setting around the circular base plate, 2) the revolution speed is limited by the angular step (the ratio of signal period to revolution period) and the frequency.

Original language	English
Title of host publication	39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Pages	4240-4249
Number of pages	10
State	Published - 2010
Event	39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 - Lisbon, Portugal Duration: 2010.06.13 → 2010.06.16

Publication series

Name	39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Volume	6

Conference

Conference	39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Country/Territory	Portugal
City	Lisbon
Period	10.06.13 → 10.06.16

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure
SDG 12 Responsible Consumption and Production

Keywords

Diffuser
Edge diffraction
Reverberation room method
Scattering coefficient
Time invariance

Cite this

@inproceedings{86a47fb15d364197a8e23e1eda3ea6db,

title = "Issues on the reverberation room method for measuring the scattering coefficients -borther setting and revolution of test sample",

abstract = "The reverberation room method for measuring the random-incidence scattering coefficients has been already developed in ISO 17497-1, however there exists some points to be better investigated. One point is that the scattering coefficient could be overestimated by the destructive diffraction from the uneven perimeter of a test sample. Another point is on the limitation of sample rotation, which is employed with a turntable in the continuous measurement of room impulse responses. At this moment, the limitation of the revolution speed is unclear, thus it is not yet specified in the ISO. This paper discusses the effect of border setting and revolution limitation of test samples through 1:4 scale model measurements. The results demonstrated that: 1) edge scattering can be suppressed by border setting around the circular base plate, 2) the revolution speed is limited by the angular step (the ratio of signal period to revolution period) and the frequency.",

keywords = "Diffuser, Edge diffraction, Reverberation room method, Scattering coefficient, Time invariance",

author = "Hyojin Lee and Yuzo Tsuchiya and Tetsuya Sakuma",

year = "2010",

language = "English",

isbn = "9781617823961",

series = "39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010",

pages = "4240--4249",

booktitle = "39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010",

note = "39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 ; Conference date: 13-06-2010 Through 16-06-2010",

}

Lee, H, Tsuchiya, Y & Sakuma, T 2010, Issues on the reverberation room method for measuring the scattering coefficients -borther setting and revolution of test sample. in 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010. 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010, vol. 6, pp. 4240-4249, 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010, Lisbon, Portugal, 10.06.13.

Issues on the reverberation room method for measuring the scattering coefficients -borther setting and revolution of test sample. / Lee, Hyojin; Tsuchiya, Yuzo; Sakuma, Tetsuya.
39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010. 2010. p. 4240-4249 (39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010; Vol. 6).

Research output: Contribution to conference › Conference paper › peer-review

TY - GEN

T1 - Issues on the reverberation room method for measuring the scattering coefficients -borther setting and revolution of test sample

AU - Lee, Hyojin

AU - Tsuchiya, Yuzo

AU - Sakuma, Tetsuya

PY - 2010

Y1 - 2010

N2 - The reverberation room method for measuring the random-incidence scattering coefficients has been already developed in ISO 17497-1, however there exists some points to be better investigated. One point is that the scattering coefficient could be overestimated by the destructive diffraction from the uneven perimeter of a test sample. Another point is on the limitation of sample rotation, which is employed with a turntable in the continuous measurement of room impulse responses. At this moment, the limitation of the revolution speed is unclear, thus it is not yet specified in the ISO. This paper discusses the effect of border setting and revolution limitation of test samples through 1:4 scale model measurements. The results demonstrated that: 1) edge scattering can be suppressed by border setting around the circular base plate, 2) the revolution speed is limited by the angular step (the ratio of signal period to revolution period) and the frequency.

AB - The reverberation room method for measuring the random-incidence scattering coefficients has been already developed in ISO 17497-1, however there exists some points to be better investigated. One point is that the scattering coefficient could be overestimated by the destructive diffraction from the uneven perimeter of a test sample. Another point is on the limitation of sample rotation, which is employed with a turntable in the continuous measurement of room impulse responses. At this moment, the limitation of the revolution speed is unclear, thus it is not yet specified in the ISO. This paper discusses the effect of border setting and revolution limitation of test samples through 1:4 scale model measurements. The results demonstrated that: 1) edge scattering can be suppressed by border setting around the circular base plate, 2) the revolution speed is limited by the angular step (the ratio of signal period to revolution period) and the frequency.

KW - Diffuser

KW - Edge diffraction

KW - Reverberation room method

KW - Scattering coefficient

KW - Time invariance

UR - https://www.scopus.com/pages/publications/84868633475

M3 - Conference paper

AN - SCOPUS:84868633475

SN - 9781617823961

T3 - 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010

SP - 4240

EP - 4249

BT - 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010

T2 - 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010

Y2 - 13 June 2010 through 16 June 2010

ER -

Issues on the reverberation room method for measuring the scattering coefficients -borther setting and revolution of test sample

Abstract

Publication series

Conference

UN SDGs

Keywords

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Cite this