Directional microphone for computer visual display monitor and m

Details Directional microphone for computer visual display monitor and m Directional microphone for computer visual display monitor and m

1997-04-02

1999-08-31

Chang, Vivian

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

381122, 381361, 381 91, 381 92, H04R 102, H04R 2500

Patent

active

059464038

ABSTRACT:
A directional microphone intended for use in a computer visual display monitor, and methods for construction of same. The integral directional microphone assembly comprises a cardioid electret microphone capsule retained therein by acoustically transparent foam. The microphone housing is mounted internally within a display monitor housing facing the user and adjacent to the top surface of the monitor housing. The microphone housing comprises a frontal opening and a plurality of nonfrontally facing openings which together maximally preserve sound pressure gradient applied to the microphone capsule, resulting in a hypercardioid spatial response.

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