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Convention Paper

The Next Generation of Interactive PC-Based "CAAD" Tools for Room Modeling and Cluster Design

Authors: Meyer, David G.; Murrell, David B.

AES Convention 85 · Paper 2701 · November 1988

Abstract

This paper describes a set of design goals for the next generation of PC-based Computer-Aided Acoustic Design (CAAD) tools, given the capabilities of currently available 32-bit microprocessors, floating point coprocessors, graphics coprocessors, and near future advances in memory/mass storage systems. The CAAD tool described would allow a system designer to view a three-dimensional, animated, color-coded display while interactively adjusting parameters such as driver type, orientation, third-octave-band signal equalization, and signal delay. Various features include a three-dimensional display viewed from an arbitrarily shaped auditoria, with interactive editing of auditorium shape/dimensions; an interactive array/cluster editor to create arrays of arbitrary configuration (element type, location, and orientation); incorporation of a high resolution (two degree interval between data points) database for each potential driver, with a single optical disk used to contain an entire library of driver types; calculation of the sound field at any arbitrary surface in the acoustic space (e.g., ear plane, side wall, etc.); a swept frequency animation of the projected sound field on an arbitrarily selected surface; a time domain animation of early and late arrivals on an arbitrarily selected surface; and a display of delay differential isobars on an arbitrarily selected surface. A PC-based CAAD tool based on these design criteria is currently under development.

Details

Published in
AES Convention 85
AES Convention
85
Paper number
2701
Publication date
November 6, 1988
Session subject
Intelligibility
Affiliation
Purdue University, West Lafayette, IN (See document for exact affiliation information.)
Type
Convention Paper