Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Sound Radiation Control for Reducing the Effect of Strong Reflections

Authors: Chang, Jiho; Cho, Jaeyoun; Lee, Yoonjae

AES Convention 138 · Paper 9259 · May 2015

Abstract

This paper is concerned with sound radiation control of a loudspeaker that has omni-directional radiation in free field condition. When the loudspeaker is placed very close to flat surfaces, the reflections from the surfaces are as strong as the direct sounds and deteriorate the omni-directionality. This study assumes a proximate wall and attempts to analyze the effect of a reflection from the wall in terms of the directivity and to improve the omni-directionality by using a circular array of loudspeakers. For a given distance, weights for loudspeakers are calculated that make the sound radiation omni-directional in spite of the wall.

Details

Published in
AES Convention 138
AES Convention
138
Paper number
9259
Publication date
May 6, 2015
Session subject
Room Acoustics
Affiliation
Samsung Electronics Co. Ltd., Suwon, Gyeonggi-do, Korea (See document for exact affiliation information.)
Type
Convention Paper