[특허]Acoustic perspective in a virtual three-dimensional environment

[미국특허] Acoustic perspective in a virtual three-dimensional environment 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-017/00
출원번호	US-0895264 (1997-07-16)
발명자 / 주소	Padula Thomas J.
출원인 / 주소	Silicon Graphics, Inc.
대리인 / 주소	Sterne, Kessler, Goldstein & Fox P.L.L.C.
인용정보	피인용 횟수 : 75 인용 특허 : 11

초록 ▼

A system and method for correcting discrepancies in the apparent location of audio sources in a computer representation of a three-dimensional environment is provided. The system and method compensate for distortions created by disparities between the virtual camera field of view and the observer's field of view. The system and method further provide for appropriate adjustments to audio sources outside of the observer's field of view.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of positioning an audio source in a computer representation of a three-dimensional environment comprising the steps of:determining a first coordinate location of said audio source in said computer representation of a three-dimensional environment;determining a visual perspective location of said audio source in said computer representation of a three dimensional environment;positioning said audio source at an acoustic perspective location corresponding to said visual perspective location in said computer representation of a three-dimensional environment;determining a field of view of an observer of said audio source;determining whether said visual perspective location of said audio source is within said field of view of said observer; andattenuating said audio source if said visual perspective location of said audio source is outside of said field of view of said observer, wherein said step of attenuating said audio source if said visual perspective location of said audio source is outside of said field of view of said observer comprises determining the field of view of a viewpoint through which said observer views said computer representation of a three-dimensional environment, determining the ratio of said field of view of said viewpoint to said field of view of said observer, determining how far said visual perspective location of said audio source is outside of said field of view of said observer, and attenuating said audio source in accordance with said ratio and said determination of how far said visual perspective location of said audio source is outside of said field of view of said observer.

이 특허에 인용된 특허 (11) 인용/피인용 타임라인 분석

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Lowe Danny D. (Calgary CAX) Lees John W. (Calgary CAX), Sound imaging method and apparatus.
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Myers Peter H. (San Jose CA), Three-dimensional auditory display apparatus and method utilizing enhanced bionic emulation of human binaural sound loca.
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Mukojima Masahiro,JPX ; Yamaoka Shigemitsu,JPX, Three-dimensional sound system.
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