Directional microphone system

Details Directional microphone system Directional microphone system

1997-09-16

2000-10-24

Le, Huyen

Electrical audio signal processing systems and devices

Directive circuits for microphones

381 81, 381111, 381356, H04R 2500

Patent

active

061378879

ABSTRACT:
A multiple-microphone actuation control system using direction-sensitive microphones turns ON microphones only if a talker's speech originates from within a specified "acceptance angle" in front of the microphones. Additionally, the invention automatically identifies which microphone best "hears" the talker, and only turns ON one microphone per talker, while allowing several microphones to turn ON simultaneously for several talkers.

REFERENCES:
patent: 4489442 (1984-12-01), Anderson et al.
patent: 4658425 (1987-04-01), Julstrom
"Direction-Sensitive Gating: A New Approach to Automatic Mixing," Stephen Julstrom and Thomas Tichy, J. Audio Eng. Soc., vol. 32, No. 7/8 1984 Jul./Aug., presented at the 73rd Convention of the Audio Engineering Society, Eindhoven, The Netherlands, Mar. 15-18, 1983.

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