发明授权
US08542854B2 Virtual surround for loudspeakers with increased constant directivity
有权
具有增加恒定方向性的扬声器的虚拟环绕
- 专利标题: Virtual surround for loudspeakers with increased constant directivity
- 专利标题(中): 具有增加恒定方向性的扬声器的虚拟环绕
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申请号: US12717781申请日: 2010-03-04
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公开(公告)号: US08542854B2公开(公告)日: 2013-09-24
- 发明人: Jason Riggs , Jason N. Linse , Rong Hu , Joy E. Lyons
- 申请人: Jason Riggs , Jason N. Linse , Rong Hu , Joy E. Lyons
- 申请人地址: CH Lausanne
- 专利权人: Logitech Europe, S.A.
- 当前专利权人: Logitech Europe, S.A.
- 当前专利权人地址: CH Lausanne
- 代理机构: Kilpatrick Townsend & Stockton LLP
- 主分类号: H04R5/02
- IPC分类号: H04R5/02
摘要:
Various embodiments use combinations of different methods for creating virtual surround. Some of the methods used in various embodiments include: dipole beamforming, multi-stage arrays, transducer directionality, and enclosure shading. In general, each of these methods may operate over a specific frequency band in various embodiments. The use of multiple methods to create virtual sound can increase the virtual sound effect and better maintain sound quality compared to the use of a single method for creating virtual surround. Each method used to create virtual surround can be optimized for a specific system configuration based on factors such as the physical set-up of the transducers, the size and shape of the enclosure, and the input signal configuration. Various embodiments allow for an intensity difference to be created for a listener across a wide range of frequencies in order to produce constant directionality.
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