This paper presents a novel method for automatically selecting the optimal in-situ acoustical frequency response of active loudspeakers within a discrete-valued set of responses offered by room response controls on active loudspeakers. The rationale of the room response controls for the active loudspeakers is explained. The frequency response, calculated from the acquired impulse response, is used as the input for the optimisation algorithm to select the most favourable combination of room response controls. The optimisation algorithm is described. The performance of the algorithm is analysed and discussed. This algorithm has been implemented and is currently in active use by specialist loudspeaker system calibrators who set up and tune studios and listening rooms.

Authors: Goldberg, Andrew; Makivirta, Aki
Affiliation: Genelec Oy, Iisalmi, Finland
AES Conference: 23rd International Conference: Signal Processing in Audio Recording and Reproduction (May 2003)
Paper Number: 18
Publication Date: May 1, 2003
Subject: Signal Processing in Audio Recording and Reproduction

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