A high-resolution goniometer to measure sound diffraction patterns
Authors
Savino, Anthony
ORCID
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Other Contributors
Xiang, Ning
Braasch, Jonas
Perry, Chris (Christopher S.)
Braasch, Jonas
Perry, Chris (Christopher S.)
Issue Date
2019-08
Keywords
Architectural sciences
Degree
MS
Terms of Use
This electronic version is a licensed copy owned by Rensselaer Polytechnic Institute, Troy, NY. Copyright of original work retained by author.
Full Citation
Abstract
Surface scattering and diffuse reflections from acoustic diffusers have recently become a significant topic of research for room acoustics. An acoustical goniometer can be implemented to create a circular microphone array to characterize the polar response for various types of diffusers. Particular areas of interest include validating the physical theory of diffraction (PTD) through the use of finite sized diffusers. In order to properly describe this phenomena, a microphone array must achieve a fine enough angular resolution in addition to fulfilling the far field requirements. This talk will discuss the implementation and results of a portable goniometer with a radius of five meters and an angular resolution of 1.25 degrees. This design is intended to be easily deployed in empty, indoor spaces of sufficiently large dimensions for a full 360 degree diffraction responses.
Description
August 2019
School of Architecture
School of Architecture
Department
School of Architecture
Publisher
Rensselaer Polytechnic Institute, Troy, NY
Relationships
Rensselaer Theses and Dissertations Online Collection
Access
Restricted to current Rensselaer faculty, staff and students. Access inquiries may be directed to the Rensselaer Libraries.