Stereophonic sound reproduction with acoustically matched receiv

Details Stereophonic sound reproduction with acoustically matched receiv Stereophonic sound reproduction with acoustically matched receiv

1975-03-03

1976-10-12

Olms, Douglas W.

179107E, 179182R, 179147, H04R 102, H04R 500

Patent

active

039859606

ABSTRACT:
A binaural sound recording and reproduction system which utilizes a recording mannequin equipped with an electroacoustic model of the human auditory tract to thereby record the sound pressure which would be incident on a listener's eardrum and also utilizes a headset with in-ear transducers or receivers which exhibit a flat frequency response as measured at the listener's eardrums is described. The receiver units utilize acoustic impedance matching to the listener's ear canal to effect the flat frequency response characteristic. An electrical equalizer circuit to facilitate the use of the subject in-ear receivers with conventionally recorded sound is also disclosed.

REFERENCES:
patent: 2363175 (1944-11-01), Grossman
patent: 2849533 (1958-08-01), Di Mattia
patent: 3157750 (1964-11-01), Weingartner
patent: 3558833 (1971-01-01), McCrory
patent: 3798393 (1974-03-01), Gorike
patent: 3890474 (1975-06-01), Glicksberg
"An Ear-Like Coupler--," by Zwislocki, Apr., 1971, Special Report LSC-S-9.

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