发明授权
- 专利标题: Method and apparatus for creating spatialized sound
- 专利标题(中): 用于创建空间化声音的方法和装置
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申请号: US10802319申请日: 2004-03-16
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公开(公告)号: US08638946B1公开(公告)日: 2014-01-28
- 发明人: Jerry Mahabub
- 申请人: Jerry Mahabub
- 申请人地址: US CO Centennial
- 专利权人: GenAudio, Inc.
- 当前专利权人: GenAudio, Inc.
- 当前专利权人地址: US CO Centennial
- 代理机构: Dorsey and Whitney LLP
- 主分类号: H04R5/00
- IPC分类号: H04R5/00
摘要:
A method and apparatus for creating spatialized sound, including the operations of determining a spatial point in a spherical coordinate system, and applying an impulse response filter corresponding to the spatial point to a first segment of the audio waveform to yield a spatialized waveform. The spatialized waveform emulates the audio characteristics of a non-spatialized waveform emanating from the chosen spatial point. That is, when the spatialized waveform is played from a pair of speakers, the played sound apparently emanates from the chosen spatial point instead of the speakers. A finite impulse response filter may be employed to spatialize the audio waveform. The finite impulse response filter may be derived from a head-related transfer function modeled in spherical coordinates, rather than a typical Cartesian coordinate system. The spatialized audio waveform ignores speaker cross-talk effects, and requires no specialized decoders, processors, or software logic to recreate the spatialized sound.
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