Microphone and acoustic equalizer therefor

Details Microphone and acoustic equalizer therefor Microphone and acoustic equalizer therefor

1986-03-04

1987-03-03

Fuller, Benjamin R.

Acoustics

Diaphragm

With resonant chamber

181158, H04R 700

Patent

active

046468730

ABSTRACT:
An acoustic equalizer adapted for use with a microphone includes a resonator plate having front and back faces, a lip surrounding the plate and defining a first air cavity in the back face of the plate, and a plurality of apertures formed through the thickness of the plate, which apertures communicate with the first cavity. A boss is formed centrally on the front face of the plate. The boss is closed ended on one side and hollow interiorly to define a second air cavity. The first and second cavities communicate with each other through a central opening formed in the plate.

REFERENCES:
patent: 2205670 (1940-06-01), Pye
patent: 2672525 (1954-03-01), Pye
patent: 3204031 (1965-08-01), Gorike et al.
patent: 3418427 (1968-12-01), Hoffmann
patent: 4376232 (1983-03-01), Martin
patent: 4410770 (1983-10-01), Hagey

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