Directional microphone
First Claim
1. A directional microphone comprising a single elongated interference tube having at least one aperture in the side thereof and two ends, at least one electroacoustic transducer connected in one end of said tube, and a concave acoustic reflector connected to the opposite end of said tube whereby sound waves of the upper audio frequency range are concentrated and directed into the opposite end of the tube.
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Accused Products
Abstract
A directional microphone of the interference type comprising a single elongated tube having one or more longitudinal slots or side apertures therein, at least one electroacoustic transducer provided at one end of the tube and an acoustic reflector assembly provided at an opposite free end zone of the tube, by which, preferably, sound waves of the upper audio frequency range are concentrated toward the sound inlet of the interference tube at the opposite free end zone thereof. A directional microphone which is easy to handle and unites the advantages of an interference microphone with that of a reflector microphone is thus obtained.
43 Citations
13 Claims
- 1. A directional microphone comprising a single elongated interference tube having at least one aperture in the side thereof and two ends, at least one electroacoustic transducer connected in one end of said tube, and a concave acoustic reflector connected to the opposite end of said tube whereby sound waves of the upper audio frequency range are concentrated and directed into the opposite end of the tube.
Specification