This paper revisits a method for determining the acoustic reflection factor by use of two pressure measurements: one at a surface under study and the other at a rigid surface in the same location of a room. The rigid surface is approximated in situ by placing a steel sheet in front of the surface under study. Measurements are made with and without the sheet at the same location. The ratio of these measurements is used to determine the acoustic reflection factor of the surface. The principle and limitations of this method are discussed, and experimental results will be given for a rigid surface, a resonant surface, and an absorptive surface, measured in different environments.
Authors:
Mallais, Scott; Vanderkooy, John
Affiliation:
University of Waterloo, Waterloo, Ontario, Canada
AES Convention:
127 (October 2009)
Paper Number:
7958
Publication Date:
October 1, 2009
Subject:
Loudspeakers in Rooms
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.