Out-of-head localized sound reproduction system for headphone

Details Out-of-head localized sound reproduction system for headphone Out-of-head localized sound reproduction system for headphone

1977-05-17

1979-01-23

Olms, Douglas W.

179 1D, H04R 504

Patent

active

041362608

ABSTRACT:
In stereo sound reproduction circuitry for use with a stereo signal source and stereo headphones, the improvement of dip filter means disposed between the stereo signal source and the stereo headphones, the dip filter means having a dip in the transmission characteristic thereof, the dip being in substantially the same frequency position as a dip which occurs in the sound pressure frequency response characteristic at the ear canal entrance when a sound source is disposed in front of a listener.

REFERENCES:
patent: 3088997 (1963-05-01), Bauer
patent: 3110771 (1963-11-01), Logan et al.
patent: 3236949 (1966-02-01), Atal et al.
patent: 3920904 (1975-11-01), Blauert et al.
patent: 3962543 (1976-06-01), Blauert et al.
patent: 3970787 (1976-07-01), Searle
"On the Differences Between Localization and Lateralization", by Plenge, J. Acoust. Soc. Am., vol. 56, No. 3, Sep. 1974, pp. 944-951.
"Sound Localization in the Median Plane" by Blauert, Acustica, vol. 22, pp. 205-213.

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