Sound inlet for microphones
AssigneeAKG Akustische u.Kino-Gerate Gesellschaft m.b.H.
InventorBernhard Bruna
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Abstract
A sound inlet for microphones to inhibit noises caused by sonic pressure changes occurring in shocklike pulses is disclosed which includes, in the area in front of the diaphragm walls which extend the microphone housing and have sound entry channels with openings at its outer surfaces that are closer to the diaphragm plane than those located at its inner surface. A cavity enclosed by the extending walls is closed off at the front of the housing by a cap-shaped or a plug-shaped closure.
Claims8
An improved sound inlet for a microphone having an elongated housing with a central longitudinal axis extending therethrough, and an electroacoustic transducer mounted within the housing with a diaphragm disposed perpendicular to the longitudinal axis of the housing, the improved sound inlet comprising a longitudinally extending wall portion attached to the housing to define and surround a cavity in front of the diaphragm, said wall portion having a plurality of channels extending at an oblique angle relative to the longitudinal axis through the wall portion from its outer side to its inner side adjacent the cavity, each of said channels having a first end opening on the inner side and a second end opening on the outer side, the second end opening being disposed closer to the diaphragm than the first end opening, and said wall portion including means for closing that end of the longitudinally extending wall portion remote from the housing.
Dependencies are inferred from the claim text.