Stereo microphone unit

Details Stereo microphone unit Stereo microphone unit

1991-05-21

1993-04-27

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Stereo sound pickup device

381 92, H04R 5027

Patent

active

052069109

ABSTRACT:
A stereo microphone unit adapted to be installed in a video camera or the like, includes a cabinet, two nondirectional microphones disposed with a predetermined distance therebetween on respective walls of the cabinet for collecting an outside sound signal, delay circuits for delaying each output of the microphones by a time period corresponding to the predetermined distance, and signal subtractors for subtracting the output of the delay circuit relative to one microphone from the output of the other microphone. A stereo audio signal is provided only with regard to the output sound signal of any frequency lower than a predetermined frequency of 6 kHz or so.

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