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Conference Paper

A Simple Acoustic Room Model for Virtual Production

Authors: Walker, Robert

AES Conference: UK 14th Conference: Audio - The Second Century · Paper ASC-07 · June 1999

Abstract

The use of television virtual production is becoming commonplace. This paper describes the principles of a simple, experimental audio system, developed to accompany a video virtual production system. The acoustic model included the direct sound, six first-order room boundary reflections, reverberation, source directivity, air and surface absorption and obstruction or reflection of the direct sound by one internal, flat object within the room, with diffraction effects around the obstacle. The paper describes the topological arrangement of dsp modules, the models used to implement delay, reverberation and filtering and discusses some of the frequency-domain approximations used.

Details

Published in
AES Conference: UK 14th Conference: Audio - The Second Century
Paper number
ASC-07
Publication date
June 6, 1999
Session subject
Audio - The Second Century
Affiliation
BBC Research & Development, Tadworth, UK (See document for exact affiliation information.)
Type
Conference Paper