• Login
    View Item 
    •   DSpace@RPI Home
    • Rensselaer Libraries
    • RPI Theses Open Access
    • View Item
    •   DSpace@RPI Home
    • Rensselaer Libraries
    • RPI Theses Open Access
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Experimental validations of acoustic diffractions using portable goniometer with high angular resolution and large radii

    Author
    Kawasaki, Jonathan
    Thumbnail
    View/Open
    179180_Kawasaki_rpi_0185N_11355.pdf (14.12Mb)
    Other Contributors
    Xiang, Ning; Braasch, Jonas; Perry, Chris (Christopher S.);
    Date Issued
    2018-08
    Subject
    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.;
    Metadata
    Show full item record
    URI
    https://hdl.handle.net/20.500.13015/2246
    Abstract
    Diffusion is used in room acoustics to distribute sound energy and reduce concentrated refected energy and is measured using a goniometer. This experiment explores an improved portable goniometer design with microphones rotated at 1.25 degrees apart in a full circle. The microphones are embedded in a thin, light arch with a radius at 2.5 and 5 meters to collect from 288 points compared to the current standard AES-4id-2001 which collects from 72 points in a semi-circle. The large radius is crucial to satisfy far-eld conditions and higher resolution to validate the physical theory of diffraction, edge diffractions, and improve data of diffusers, both manufactured and simulated.;
    Description
    August 2018; School of Architecture
    Department
    School of Architecture;
    Publisher
    Rensselaer Polytechnic Institute, Troy, NY
    Relationships
    Rensselaer Theses and Dissertations Online Collection;
    Access
    Users may download and share copies with attribution in accordance with a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License. No commercial use or derivatives are permitted without the explicit approval of the author.;
    Collections
    • RPI Theses Online (Complete)
    • RPI Theses Open Access

    Browse

    All of DSpace@RPICommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Login

    DSpace software copyright © 2002-2022  DuraSpace
    Contact Us | Send Feedback
    DSpace Express is a service operated by 
    Atmire NV