Noise control device

Details Noise control device Noise control device

H - Electricity

04

R

H04R 1/08 (2006.01) H04M 1/19 (2006.01) H04R 1/34 (2006.01)

Patent

CA 2266465

An apparatus for noisy cancellation of ambient noise impinging upon the front surface of a pressure differential microphone. The apparatus utilizes curved reflectors (24, 25) to cause ambient noise which impinges on the front surface of the microphone to also impinge on the back surface of the microphone. In addition, the curved reflectors deflect (68) a speaker's voice which is directed toward the front surface of the microphone to be deflected away from the back surface of the microphone.

Ce dispositif est destiné à supprimer le bruit ambiant pénétrant par la surface antérieure d'un microphone à différentiel de pression et il comprend des réflecteurs courbes (24, 25), afin que le bruit ambiant pénétrant par la surface antérieure du microphone soit dirigé également contre la surface postérieure de celui-ci. En outre, ces réflecteurs dévient (68) la voix d'un orateur, laquelle est dirigée vers la surface antérieure du microphone, afin que cette voix soit déviée à partir de la surface arrière du microphone.

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