Monaural signal to artificial stereo signals convertings and pro

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179 1G, H04R 500

Patent

active

043596053

ABSTRACT:
A monaural signal to artificial stereo signals converting and processing circuit for headphones comprises, a circuit which converts a monaural signal into artificial stereo signals, a circuit which adds localizing information of imaginary sources to the artificial stereo signals thus obtained, and a circuit which adds imaginary indirect sounds to the artificial stereo signals added with the localizing information. Due to the addition of the indirect sounds, the sound expansion felt by a listener listening to a headphone expands to regions outside the listener's head.

REFERENCES:
patent: 3670106 (1972-06-01), Orban
patent: 4039755 (1977-08-01), Berkovitz
patent: 4308424 (1981-12-01), Bice, Jr.

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