Mounting arrangement for altering a microphone's frequency respo

Details Mounting arrangement for altering a microphone's frequency respo Mounting arrangement for altering a microphone's frequency respo

1982-10-29

1985-04-16

Rubinson, Gene Z.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

179111E, 179146E, 179181R, 179102, 29594, 181144, H04M 104

Patent

active

045117683

ABSTRACT:
A microphone mounting arrangement for altering the microphone's audio frequency response characteristic comprises a microphone disposed within an enclosure bounded by a loudspeakers cone on one side and a flexible diaphragm on the other side. The microphone is preferably mounted to a web-like mounting structure which is sandwiched between the loudspeaker and the flexible diaphragm. The resonant characteristic of the enclosure selectively alters the intensity of soundwaves impinging upon the diaphragm so that enclosed microphone's frequency response is altered. Improved intelligibility in high noise level environment is thereby attained.

REFERENCES:
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patent: 1827283 (1927-01-01), De Forest
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patent: 3833085 (1974-09-01), Thomasen
patent: 3943304 (1976-03-01), Piribauer
"Apply Electret Microphones to Voice-input Designs", Ture Heline, Gentex Corp. EDN, Sep. 2, 1981, pp. 225-230.
Motorola Manual--HT220 Series--Handie-Talkie FM Radio, Mar. 24, 1975, pp. 18-21.
IEEE Transactions on Acoustics, Speech and Signal Processing "The Enhancement of Speech Intelligibility in High Noise Levels by High-Pass Filtering Followed by Rapid Amplitude Compression"--Russell J. Niederjohn and James H. Grotelueschen, Member, IEEE, vol. ASSP-24, No. 4, Aug. 1976.

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