发明授权
US6154545A Method and apparatus for two channels of sound having directional cues
失效
具有方向线索的两声道声道的方法和装置
- 专利标题: Method and apparatus for two channels of sound having directional cues
- 专利标题(中): 具有方向线索的两声道声道的方法和装置
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申请号: US133289申请日: 1998-08-12
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公开(公告)号: US6154545A公开(公告)日: 2000-11-28
- 发明人: Michael Kohut , James Mercs , Laura Mercs , Paul M. Embree , Paul Nigel Wood
- 申请人: Michael Kohut , James Mercs , Laura Mercs , Paul M. Embree , Paul Nigel Wood
- 申请人地址: JPX Tokyo CA Culver City
- 专利权人: Sony Corporation,Sony Pictures Entertainment, Inc.
- 当前专利权人: Sony Corporation,Sony Pictures Entertainment, Inc.
- 当前专利权人地址: JPX Tokyo CA Culver City
- 主分类号: H04S1/00
- IPC分类号: H04S1/00 ; H04K1/00 ; H04L9/00
摘要:
The system and method of the present invention provides enhanced surround sound effects. In one embodiment, 90.degree. phase shift and copy of the modified head related transfer functions (HRTF) are applied to each rear sound signal. The modified HRTF for each rear signal is generated by removing the head related transfer function corresponding to the front center signal from the HRTF corresponding to the rear sound signal. This provides the audible effect of distinguishing more clearly sounds originating in front of the listener or to the rear of the listener while not limiting the perceived bandwidth of the signal. The rear signals corresponding to the first channel are inverted. The front and rear signals for each corresponding channel are then combined. The two channels, generated can be stored on media, such as film, and subsequently read and input to a surround sound decoder to generate enhanced surround sound output.
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