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Convention Paper

Sound Field Simulator for Room Acoustic Design and Assessment-Introduction of Wave-Theoretical Treatment to Synthesized Sound

Authors: Hidaka, Takayuki

AES Convention 93 · Paper 3387 · October 1992

Abstract

Wave-theoretical treatment is introduced into a multi-loudspeaker for an auralization system. Wave phenomenon plays an important role in the recognition of sound field synthesis in a room and the technical limitation concerning this problem is now being solved through the development of hardware. In this sound field simulator, reflected waves obtained from calculations are divided into three groups: early reflections, late reflections before -Nachhalleinsatzzeit- and, following that, late reverberation. Waves belonging to the first group, which are the most important early reflections, are synthesized by convoluting corresponding impulse responses at the reflected surface. The late reverberation is synthesized by convoluting modified impulse responses, which were measured previously in real rooms of various shapes and scales. The simulated sound is compared with real room measurement.

Details

Published in
AES Convention 93
AES Convention
93
Paper number
3387
Publication date
October 6, 1992
Session subject
Auralization
Affiliation
Takenaka Technical Research Laboratory, Minamisuna Koto-ku, Tokyo, Japan (See document for exact affiliation information.)
Type
Convention Paper