Beamed linear array microphone system

Details Beamed linear array microphone system Beamed linear array microphone system

1993-07-30

1997-08-12

Isen, Forester W.

Electrical audio signal processing systems and devices

Directive circuits for microphones

367123, 367125, 367126, H04R 300

Patent

active

056573936

ABSTRACT:
A sound enhancement system including a beamed linear array microphone system for the acoustic pickup of voice and music from substantial distances with a relatively narrow sound pickup beam and with the avoidance of acoustic feedback. The acceptance beam angle is relatively constant over the desired sound octaves. Response outside of the acceptance beam is relatively low. The system includes a microprocessor-controlled circuit for processing the signals from a multiplicity of microphone elements in the linear array for application to a loudspeaker.

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patent: 4696043 (1987-09-01), Iwahara et al.
patent: 4955003 (1990-09-01), Goldman
Alvarado, Victor M. and Silverman, Harvey F., "Experimental Results Showing The Effects of Optimal Spacing Between Element of a Linear Microphone Array," IEEE, Feb. 1990. CH 2847-2/90/0000-0837.

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