Headphone with two resonant peaks for simulating loudspeaker rep

Details Headphone with two resonant peaks for simulating loudspeaker rep Headphone with two resonant peaks for simulating loudspeaker rep

1978-07-10

1980-07-08

Moffitt, James W.

H04M 105, H04R 128

Patent

active

042118980

ABSTRACT:
A headphone is designed to have two resonant peaks for simulating loudspeaker reproduction. The headphone comprises a housing in which an electroacoustic transducer with a diaphragm is positioned, wherein the housing is formed with a rearward cavity positioned adjacent to the diaphragm remote from the listener's ear to provide an acoustic compliance to the generated acoustic energy. In order to generate the two resonant peaks to simulate a sensation of realism as if the listener is hearing sound from a loudspeaker, the rearward cavity is communicated with the atmosphere through apertures. The acoustic compliance of the rearward cavity coacts with the apertures to produce two resonant peaks at frequencies corresponding to the frequencies of the peaks which occur in a signal from the loudspeaker.

REFERENCES:
patent: 4058688 (1977-11-01), Nishimura et al.

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