Microphone apparatus

Details Microphone apparatus Microphone apparatus

1992-04-20

1993-07-06

Isen, Forester W.

Electrical audio signal processing systems and devices

Directive circuits for microphones

381 26, H04R 300

Patent

active

052260879

ABSTRACT:
A microphone apparatus comprises two non-directional microphones in case of monaural sound pickup or three non-directional microphones in case of stereo sound pickup, and a signal processing means for processing output signals of the non-directional microphones so that a directivity becomes non-directional in a low frequency region and a first order pressure gradient type in a high frequency region. Accordingly, the microphone apparatus can attenuate the level of unwanted acoustic and vibration noises caused by its onboard moving mechanism as well as wind noise, thus ensuring no declination in the S/N ratio during sound pickup action.

REFERENCES:
patent: 4354059 (1982-10-01), Ishigaki et al.

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