An automatic polar response measurement and analysis system controlled by an industrial/small business grade microcomputer is described. A Z80 microprocessor based S100-buss computer (a Cromemco System 3) interfaced with a one-third octave realtime analyzer and remote controlled turntable is used to gather response spectra at different angles. The disk stored spectral data is subsequently analyzed to generate polar/frequency response curves and beamwidth/directivity data. This paper emphasizes the practical aspects and problems encountered in development of the system's hardware and software.

Author: Keele, Jr., D. B. (Don)
Affiliation: James B Lansing Sound Inc, CA
AES Convention: 65 (February 1980) Paper Number: 1586
Publication Date: February 1, 1980

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