Method for reducing and streamlining three-dimensional multiple sound channel audio system speaker group by half

Abstract

The invention discloses a method for reducing and streamlining a three-dimensional multiple sound channel audio system speaker group by half. Mirror images are arranged to be symmetrical according to original speakers, and n speakers in a three-dimensional n sound channel audio system are streamlined into m speakers in a three-dimensional m sound channel audio system by means of half-reducing method. The method for reducing and streamlining the three-dimensional multiple sound channel audio system speaker group by half comprises the following steps: obtaining spatial location information of each speaker in the three-dimensional n sound channel audio system before half reduction and streamlining; reducing the speakers in the three-dimensional n sound channel audio system by half before the streamlining by means of the symmetrical surface, and obtaining original objects to be streamlined; conducting mirror image allocation on the speakers; analyzing all combinations of a triangular speaker group in objects to be streamlined, and analyzing speakers, obtaining speakers and rejecting speakers which should be streamlined; and rejecting mirror image points of the rejected streamlined speakers, judging whether the sum of the current speakers to be streamlined is larger than m, wherein a simplification process is continuously executed if the sum of the current speakers to be streamlined is larger than an-m, otherwise, iteration is finished, and obtaining optimal spatial location distribution of the m sound channel streamlined system speaker group.

Description

technical field [0001] The invention belongs to the field of acoustics, and in particular relates to a method for halving and simplifying 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". According to data obtained at the International Consumer Electronics Show (CES) held in Las Vegas in 2013, global 3D TV sales in 2012 increased by 67% compared with the previous year, of which the sales volume in the Chinese mainland market was 10 million units, accounting for 25% of the global 3D TV sales; iSuppli...

AI Technical Summary

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

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