Meyer Sound Laboratories, Incorporated

Peter C Soper

John D Meyer

Paul J Kohut

Jon M Arneson

Perrin Meyer

Roger Schwenke

Stephen B Starkweather

Richard D Herr

Bruce T Arasato

Alejandro Antonio Garcia Rubio

A loudspeaker system has a plurality of relatively small transducer elements configured in a closely spaced transducer array such that their acoustic outputs combine to produce a focused beam of sound in front of the array that is substantially uniform about the beams radiation axis. The transducer array lies in a plane and has a perimeter that approximates a circle, and will have fill-factor with respect to a circle circumscribing the array of at least approximately 70%. In one variation of the loudspeaker system, the transducer array is constructed in smaller transducer array modules that are operatively fitted together to produce a larger array.

Loudspeaker system and method for producing synthesized directional sound beam

Microphone

A method and correction circuit for improving and controlling the listening window and response of a two-way loudspeaker system utilizing a horn-loaded high frequency driver. The correction circuit includes adjustable active all-pass and band-pass filters, in a specific arrangement, coupled with conventional cross-over filters to achieve a maximally flat amplitude and phase response acoustically throughout a preferred listening window. A spectrum analyzer measures the near-field responses of the individual and combined transducers while adjustments are made. A phase shifting circuit is included in the low frequency channel which results in improved near-field to far-field response consistency and significantly improves the subjective characteristics of the high frequency horn.

Method and circuit for improving the polar response of a two-way

Loudspeaker

Growing community of inventors

Berkeley, CA, United States of America

Peter C Soper