Abstract
A combined model for room acoustic predictions is developed, aiming to treat both diffuse and specular reflections in a unified way. Two established methods are incorporated: acoustical radiosity, accounting for the diffuse part, and the image source method, accounting for the specular part. The model is based on conservation of acoustical energy. Losses are taken into account by the energy absorption coefficient, and the diffuse reflections are controlled via the scattering coefficient, which defines the portion of energy that has been diffusely reflected. The way the model is formulated allows for a dynamic control of the image source production, so that no fixed maximum order is required.
Original language | English |
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Title of host publication | Internoise 2012 |
Number of pages | 12 |
Publication date | 2012 |
Publication status | Published - 2012 |
Event | 41st International Congress and Exposition on Noise Control Engineering - Marriott Marquis, New York City, NY, United States Duration: 19 Aug 2012 → 22 Aug 2012 Conference number: 41 |
Conference
Conference | 41st International Congress and Exposition on Noise Control Engineering |
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Number | 41 |
Location | Marriott Marquis |
Country | United States |
City | New York City, NY |
Period | 19/08/2012 → 22/08/2012 |