Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent
1997-10-09
1999-01-19
Kuntz, Curtis A.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Pseudo stereophonic
381 18, 345425, 463 35, H04R 500
Patent
active
058622292
ABSTRACT:
Digital sound data are stored in a data memory. When a first display object (such as an enemy character, a waterfall, or the like) is displayed in a three-dimensional manner on a display screen, an audio processor reads out corresponding sound source data from the data memory to produce first and second sound source data. The first and second sound source data are converted into analog audio signals by digital-to-analog converters, and then used to drive left and right speakers. The audio processor calculates a delay between generation of the first and second sound source data based on a direction of the first display object as viewed from a "virtual" camera which might correspond for example to one of the graphical characters in the three-dimensional display. The audio processor also controls sound volume levels for the first and second sound source data depending on the distance between the first display object and the virtual camera. Using the present invention, realistic sound effects consistent with and synchronized to visual changes of a three-dimensional image are generated by selectively controlling the timing and volume of sound source data provided to the left and right speakers.
REFERENCES:
patent: 4281833 (1981-08-01), Sandler
patent: 4792974 (1988-12-01), Chace
patent: 4817149 (1989-03-01), Myers
patent: 5046097 (1991-09-01), Lowe et al.
patent: 5052685 (1991-10-01), Lowe et al.
patent: 5095507 (1992-03-01), Lowe
patent: 5095798 (1992-03-01), Okada et al.
patent: 5105462 (1992-04-01), Lowe et al.
patent: 5138660 (1992-08-01), Lowe
patent: 5212733 (1993-05-01), DeVitt et al.
patent: 5291556 (1994-03-01), Gale
patent: 5317714 (1994-05-01), Nakagawa et al.
patent: 5495576 (1996-02-01), Ritchey
patent: 5524060 (1996-06-01), Silfvast et al.
patent: 5636283 (1997-06-01), Hill et al.
patent: 5715318 (1998-02-01), Hill et al.
patent: 5754660 (1998-05-01), Shimizu
patent: 5768393 (1998-06-01), Mukojima et al.
patent: 5771294 (1998-06-01), Inoue et al.
patent: 5798922 (1998-08-01), Wood et al.
Kuntz Curtis A.
Mei Xu
Nintendo Co. Ltd.
LandOfFree
Sound generator synchronized with image display 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 generator synchronized with image display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound generator synchronized with image display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1252983