Quadratic residue diffuser-resonator (QRD- R) N7: Design development of QRD using Helmholtz resonator as a well

M. Lianto; Lila Yuwana; Susilo Indrawati; Gontjang Prajitno

doi:10.1088/1742-6596/1825/1/012001

Quadratic residue diffuser-resonator (QRD- R) N7: Design development of QRD using Helmholtz resonator as a well

M. Lianto, Suyatno, Lila Yuwana, Susilo Indrawati, Gontjang Prajitno

Institut Teknologi Sepuluh Nopember

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Noise is a sound that occurs at incorrect time and place so being a nuisance for human activity. Many efforts have done to try to control the noise. One of them using acoustic material called QRD. QRD is a panel consider of wells with different depth to diffuse the reflected sound. The depth of the walls is calculated by DR. Manfred Schroeder formula. In this research, given a new design combination of QRD with resonator, we call QRD-R. The design consist of N7 QRD panel 35 cm x 35 cm using 5 cm x 35 cm Helmholtz resonator as wells' ground. The purposes of this research are looking for the effect of QRD-R into SPL distribution and attenuation. The result shows there is attenuation in some frequency and there is diffuse effect because of the diffuser.

Original language	English
Article number	012001
Journal	Journal of Physics: Conference Series
Volume	1825
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1825/1/012001
Publication status	Published - 12 Mar 2021
Event	10th International Conference on Physics and Its Applications, ICOPIA 2020 - Surakarta, Indonesia Duration: 26 Aug 2020 → …

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title = "Quadratic residue diffuser-resonator (QRD- R) N7: Design development of QRD using Helmholtz resonator as a well",

abstract = "Noise is a sound that occurs at incorrect time and place so being a nuisance for human activity. Many efforts have done to try to control the noise. One of them using acoustic material called QRD. QRD is a panel consider of wells with different depth to diffuse the reflected sound. The depth of the walls is calculated by DR. Manfred Schroeder formula. In this research, given a new design combination of QRD with resonator, we call QRD-R. The design consist of N7 QRD panel 35 cm x 35 cm using 5 cm x 35 cm Helmholtz resonator as wells' ground. The purposes of this research are looking for the effect of QRD-R into SPL distribution and attenuation. The result shows there is attenuation in some frequency and there is diffuse effect because of the diffuser.",

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T1 - Quadratic residue diffuser-resonator (QRD- R) N7

T2 - 10th International Conference on Physics and Its Applications, ICOPIA 2020

AU - Lianto, M.

AU - Suyatno,

AU - Yuwana, Lila

AU - Indrawati, Susilo

AU - Prajitno, Gontjang

PY - 2021/3/12

Y1 - 2021/3/12

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AB - Noise is a sound that occurs at incorrect time and place so being a nuisance for human activity. Many efforts have done to try to control the noise. One of them using acoustic material called QRD. QRD is a panel consider of wells with different depth to diffuse the reflected sound. The depth of the walls is calculated by DR. Manfred Schroeder formula. In this research, given a new design combination of QRD with resonator, we call QRD-R. The design consist of N7 QRD panel 35 cm x 35 cm using 5 cm x 35 cm Helmholtz resonator as wells' ground. The purposes of this research are looking for the effect of QRD-R into SPL distribution and attenuation. The result shows there is attenuation in some frequency and there is diffuse effect because of the diffuser.

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Quadratic residue diffuser-resonator (QRD- R) N7: Design development of QRD using Helmholtz resonator as a well

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