Design and verification of ultrathin Schroeder diffuser based on membrane-type resonators

Han Zhao; Xiwen Guan; Han Jia; Yuzhen Yang; Yafeng Bi; Xiaoling Gai; Xianhui Li; Jun Yang

doi:10.35848/1882-0786/ac1c42

Design and verification of ultrathin Schroeder diffuser based on membrane-type resonators

Han Zhao, Xiwen Guan, Han Jia, Yuzhen Yang, Yafeng Bi, Xiaoling Gai, Xianhui Li, Jun Yang

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We present the design and experimental verification of a membrane-type resonator-based Schroeder diffuser (MRSD). The membrane-type resonator consists of a decorated membrane and a rigid back cavity. By combining multiple resonators with the phase shift profile based on the quadratic residue sequence, the MRSD can produce a high efficiency diffuse sound field. Furthermore, the designed MRSD has a thickness with deep-subwavelength scale, which is 1 order of magnitude thinner than the conventional diffuser constructed with periodical wells. The proposed MRSD has advantages in low frequency applications and offers versatility for novel manipulations of sound.

Original language	English
Article number	094005
Journal	Applied Physics Express
Volume	14
Issue number	9
DOIs	https://doi.org/10.35848/1882-0786/ac1c42
Publication status	Published - Sept 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021 The Japan Society of Applied Physics.

ASJC Scopus Subject Areas

General Engineering
General Physics and Astronomy

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abstract = "We present the design and experimental verification of a membrane-type resonator-based Schroeder diffuser (MRSD). The membrane-type resonator consists of a decorated membrane and a rigid back cavity. By combining multiple resonators with the phase shift profile based on the quadratic residue sequence, the MRSD can produce a high efficiency diffuse sound field. Furthermore, the designed MRSD has a thickness with deep-subwavelength scale, which is 1 order of magnitude thinner than the conventional diffuser constructed with periodical wells. The proposed MRSD has advantages in low frequency applications and offers versatility for novel manipulations of sound.",

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AU - Zhao, Han

AU - Guan, Xiwen

AU - Jia, Han

AU - Yang, Yuzhen

AU - Bi, Yafeng

AU - Gai, Xiaoling

AU - Li, Xianhui

AU - Yang, Jun

PY - 2021/9

Y1 - 2021/9

N2 - We present the design and experimental verification of a membrane-type resonator-based Schroeder diffuser (MRSD). The membrane-type resonator consists of a decorated membrane and a rigid back cavity. By combining multiple resonators with the phase shift profile based on the quadratic residue sequence, the MRSD can produce a high efficiency diffuse sound field. Furthermore, the designed MRSD has a thickness with deep-subwavelength scale, which is 1 order of magnitude thinner than the conventional diffuser constructed with periodical wells. The proposed MRSD has advantages in low frequency applications and offers versatility for novel manipulations of sound.

AB - We present the design and experimental verification of a membrane-type resonator-based Schroeder diffuser (MRSD). The membrane-type resonator consists of a decorated membrane and a rigid back cavity. By combining multiple resonators with the phase shift profile based on the quadratic residue sequence, the MRSD can produce a high efficiency diffuse sound field. Furthermore, the designed MRSD has a thickness with deep-subwavelength scale, which is 1 order of magnitude thinner than the conventional diffuser constructed with periodical wells. The proposed MRSD has advantages in low frequency applications and offers versatility for novel manipulations of sound.

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Design and verification of ultrathin Schroeder diffuser based on membrane-type resonators

Abstract

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ASJC Scopus Subject Areas

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