Sound image localization control apparatus

Details Sound image localization control apparatus Sound image localization control apparatus

1993-12-20

1997-01-28

Coles, Sr., Edward L.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

H04R 500

Patent

active

055984789

ABSTRACT:
A sound image localization control apparatus provided with a pair of convolvers for performing a convolution operation on signals sent from a common sound source, a storage unit for storing groups of coefficients of localization filters (namely, impulse responses) corresponding to each of locations of sound images and a coefficient supply unit for supplying the coefficients corresponding to a designated location of a sound image to the convolvers. The sound image localization control apparatus can make a listener feel as if sound images are localized in a large space as subtending a visual angle of more than 180 degrees at his eye. The sound image localization control apparatus is further provided with a synchronization unit for localizing a sound image in synchronization with an image reproduced on the screen of a monitor. The sound image localization control apparatus can provide virtual reality with more realistic presence.

REFERENCES:
patent: 3236949 (1966-02-01), Atal et al.
patent: 5404406 (1995-04-01), Fuchigami et al.

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