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Simplifying and laying method for loudspeaker groups of three-dimensional multi-channel audio system

A loudspeaker group and audio system technology, which is applied to the spatial/structural arrangement of loudspeakers, and can solve problems such as difficult implementation

Active Publication Date: 2013-01-16
NANJING BEIDOU INNOVATION & APPL TECH RES INST CO LTD
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Problems solved by technology

However, due to the limitation of the actual sound field acquisition method, the goal of completely reconstructing the original sound field is difficult to achieve

Method used

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  • Simplifying and laying method for loudspeaker groups of three-dimensional multi-channel audio system
  • Simplifying and laying method for loudspeaker groups of three-dimensional multi-channel audio system
  • Simplifying and laying method for loudspeaker groups of three-dimensional multi-channel audio system

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Embodiment Construction

[0024] The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0025] The present invention provides a method for simplifying the layout of loudspeaker groups in a three-dimensional multi-channel audio system, which is used to simplify n loudspeakers in a three-dimensional n-channel audio system into m loudspeakers to form a three-dimensional m-channel audio system, where mfigure 1 As shown, the implementation process of the embodiment includes the following steps:

[0026] Step 1, collect the spatial position information of each speaker in the three-dimensional n-channel audio system before streamlining:

[0027] The three-dimensional n-channel audio system corresponds to n speakers. Let the three-dimensional coordinate system XYZ be constructed with the center point O of the listening area as the apex. The distance between the speaker and the center point is denoted as ρ. The angle formed is denote...

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Abstract

A simplifying and laying method for loudspeaker groups of a three-dimensional multi-channel audio system comprises the following steps of: collecting the space position information of all loudspeakers in a three-dimensional n-channel audio system before simplifying; analyzing all the combinations of spherical triangle loudspeaker groups and selecting the spherical triangle loudspeaker groups only comprising a single loudspeaker respectively; removing the single loudspeaker in the loudspeaker group with the minimum spherical triangle area; judging whether the number of the current loudspeakers to be simplified is greater than m; when the number is greater than m, continuously executing the simplifying process; otherwise, stopping iteration until the number is m, so as to obtain the optimum layout of the space positions of the loudspeaker groups of the simplified m-channel system. With the technical scheme provided by the invention, the physical properties of sound at a sound listening center point can be ensured in the simplifying process.

Description

technical field [0001] The invention belongs to the field of acoustic equipment, and in particular relates to a method for simplifying and arranging loudspeaker groups of a three-dimensional multi-channel audio system. Background technique [0002] The 3D movie "Avatar" released at the end of 2009 not only topped the box office charts in more than 30 countries around the world, but also by the beginning of September 2010, the cumulative global box office had exceeded 2.7 billion US dollars. The gorgeous pictures and realistic sound effects shown in "Avatar" not only shocked the audience, but also made the industry assert that "movies have entered the three-dimensional era". At the International Consumer Electronics Show held in Las Vegas, USA in January 2010, the new TV products displayed by various color TV giants showed that 3D has become the new focus of competition among the world's major color TV manufacturers. At the same time, China's 3D TV At the end of 2011, the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R5/02
Inventor 胡瑞敏李登实杨珊珊王樱张茂胜王晓晨涂卫平王松杨玉红
Owner NANJING BEIDOU INNOVATION & APPL TECH RES INST CO LTD
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