Music – Instruments – Electrical musical tone generation
Patent
1989-10-05
1991-07-02
Grimley, A. T.
Music
Instruments
Electrical musical tone generation
84622, 84626, 84DIG1, 84DIG26, 381 1, 381 18, H04R 500
Patent
active
050276875
ABSTRACT:
A sound field control device is capable of producing a sound field effect tone which has a tonal effect providing a listener with a feeling of presence and includes a sound field effect tone generation circuit for generating a sound field effect tone on the basis of sound field information supplied from a source. The sound field effect tone is sounded simultaneously with reproduction of the source signal and a reproduced sound field produced on the basis of the source signal is controlled by this sound field effect tone. In one aspect of the invention, the sound field effect tone generation circuit includes a convolution operation circuit which subjects a signal derived from left and right signals from the source signal to convolution operation with sound field data derived on the basis of the sound field information from the source signal.
REFERENCES:
patent: 4188504 (1980-02-01), Kasuga et al.
patent: 4219880 (1980-08-01), Nichols
patent: 4251688 (1981-02-01), Furner
patent: 4332979 (1982-06-01), Fischer
patent: 4338581 (1982-07-01), Morgan
patent: 4385814 (1983-05-01), Elliott
patent: 4638506 (1987-01-01), Han
patent: 4696036 (1987-09-01), Julstrom
patent: 4704728 (1987-11-01), Scheiber
patent: 4731848 (1988-03-01), Kendall et al.
patent: 4807217 (1989-02-01), Ide
patent: 4815133 (1989-03-01), Hibino
patent: 4817149 (1989-03-01), Myers
patent: 4856064 (1989-08-01), Iwamatsu
patent: 4862502 (1989-08-01), Griesinger
patent: 4905283 (1990-02-01), Ishikawa et al.
patent: 4933768 (1990-06-01), Ishikawa et al.
patent: 4937875 (1990-06-01), Hayashi
Gerzon, M.A., "Multi-System Ambisonic Decoder", Wireless World, Jul. 1977, pp. 43-47.
"You're in the Action with Surround Sound," Popular Science, p. 89, Sep. 1986.
Heller, D. "Surround-Sound Decoders-3," Wireless World, vol. 82, No. 1488, pp. 57-59, Aug. 1976.
Heller, D., "Surround-Sound Decoders-4," Wireless World, vol. 82, No. 1489, pp. 53-56, Sep. 1976.
Grimley A. T.
Smith Matthew S.
Yamaha Corporation
LandOfFree
Sound field control device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sound field control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound field control device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1238861