Input/output transducer with damping arrangement

Details Input/output transducer with damping arrangement Input/output transducer with damping arrangement

1976-04-21

1977-03-15

Stellar, George G.

H04R 128

Patent

active

040126056

ABSTRACT:
An improved input/output transducer having an arrangement for changing the frequency response of a small speaker when it is used as a microphone provides optimum response for both requirements. When utilized as a microphone, most of the apertures in the speaker enclosure wall are covered by a movable grille and the remaining ones are appropriately damped. This provides an acceptable frequency response with lowered sensitivity. When used as a speaker, most of the enclosure apertures are completely clear, although a small number may remain damped, providing sufficient output in speaker mode.

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