Evaluation of a boss model and subtraction technique for predicting wideband scattering phenomena in room acoustics
Artikel i vetenskaplig tidskrift, 2006

Scattering from a hard hemisphere on an infinite plane is studied experimentally and theoretically in a laboratory environment using a subtraction technique. With this technique, the scattered field is determined by subtracting the transient responses from the plane with and without the boss present. Scattering for different combinations of transducer and hemisphere positions are then classified into a number of cases, denoted in-plane/off-plane and back-/forward/mixed scattering. Theoretical and experimental results are compared and evaluated from an auralization point of view using a one-third octave band smoothing of the contribution from the hemisphere. With the smoothing used, average intensity level discrepancies typically less than 3 dB are obtained for a 6 octaves wide ka -interval, where a equals the hemisphere radius. © 2006 Acoustical Society of America.

scattering

boss model

room acoustics

Författare

Georgios Natsiopoulos

Chalmers, Bygg- och miljöteknik, Teknisk akustik, Rumsakustik

Mendel Kleiner

Chalmers, Bygg- och miljöteknik, Teknisk akustik, Rumsakustik

Journal of the Acoustical Society of America

0001-4966 (ISSN) 1520-8524 (eISSN)

Vol. 119 5 2798-2803

Ämneskategorier

Samhällsbyggnadsteknik

Annan fysik

DOI

10.1121/1.2188332

Mer information

Skapat

2017-10-06