Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent
1995-01-27
1996-12-03
Isen, Forester W.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Pseudo stereophonic
H04S 500
Patent
active
055816185
ABSTRACT:
In order to obtain a sound-broadened image and a clear sound-image discrimination image when producing plural kinds of sounds, the electronic musical instrument and the like provides a sound-image position control apparatus. This apparatus at least provides a signal mixing portion (e.g., matrix controller) and a virtual-speaker position control portion. Herein, the signal mixing portion mixes plural audio signals supplied from a sound source and the like in accordance with a predetermined signal mixing procedure so as to output plural mixed signals. In order to control positions of virtual speakers which are emerged as sound-producing points as if each kind of sounds is produced from each of these points, the virtual-speaker position control portion applies different delay times to each of plural mixed signals so as to output delayed signals as right-side and left-side audio signals to be respectively supplied to right-side and left-side speakers. Thus, the sound-image positions formed by the virtual speakers are controlled well, so that the person can clearly discriminate and recognize each of the sound-image positions. When applying this apparatus to the game device providing a display unit which displays an animated image representing a visual image of the air plane and the like, by adequately controlling the sound-image position, it is possible to obtain a brand-new live-audio effect, by which the point of producing the sounds corresponding to the animated image can be moved in accordance with the movement of the animated image which is moved by the player of the game.
REFERENCES:
patent: 3826566 (1974-07-01), Csontos
patent: 3919478 (1975-11-01), Schott
patent: 4018992 (1977-04-01), Olson
patent: 4219696 (1980-08-01), Kogure et al.
patent: 4308423 (1981-12-01), Cohen
patent: 4495637 (1985-01-01), Bruney
patent: 4685134 (1987-08-01), Wine
patent: 5027689 (1991-07-01), Fujimori
patent: 5052685 (1991-10-01), Lowe et al.
patent: 5105462 (1992-04-01), Lowe et al.
patent: 5198604 (1993-03-01), Higashi et al.
Patent Abstracts of Japan, vol. 14, No. 55 (E-882) 31 Jan. 1990: JP-A-01 279 700, Acoustic Signal Processor (Washisawa) 9 Nov. 1989.
Patent Abstracts of Japan, vol. 14, No. 95 (E-892) 21 Feb. 1990: JP-A-01 300 700, Signal Field Variable Device (Tagami) 5 Dec. 1989.
EP-A-0 393 702 (Yamaha), Signal Delay Circuit, FIR Filter and Musical Tone Synthesizer Employing the Same (Yamauchi, et al.) 24 Oct. 1990.
Fujimori Junichi
Satoshi Sekine
Suzuki Yasutake
Isen Forester W.
Yamaha Corporation
LandOfFree
Sound-image position control apparatus 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-image position control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound-image position control apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-792270