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Method and system for outputting surround sound

A surround sound, waiting for output technology, applied in the field of output surround sound, can solve the problem of inaccurate surround sound, affecting the user's listening effect, etc.

Active Publication Date: 2012-11-28
CHINA DIGITAL VIDEO BEIJING
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by this application is to provide a method and system for outputting surround sound to solve the problem in the prior art that the output surround sound is inaccurate and affects the user's listening effect

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  • Method and system for outputting surround sound
  • Method and system for outputting surround sound
  • Method and system for outputting surround sound

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Embodiment Construction

[0047] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0048] This application saves the relationship between the position coordinates of the sound image point and the mapping matrix corresponding to the sound image point by using the neural network, so that the relationship between the two can be described more accurately, so that the output surround sound is more accurate and the The user's listening effect.

[0049] refer to figure 1 , showing a flow chart of an embodiment of a method for outputting surround sound in the present application, the method comprising:

[0050] Step S101, acquiring the position coordinates of the sound image point.

[0051] In the process of outputting surround sound, sound image adjustment is an important process. The soun...

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Abstract

The applicaiton provides a method and a system for outputting surround sound so as to solve the problem that the output surround sound is not accurate and thus the listening effect of a user is influenced. The method comprises the following steps: obtaining position coordinates of a sound image point; inputting the position coordinates of the sound image point to a neural network and determining a mapping matrix corresponding to the sound image point output by the neural network; receiving an input sound signal and determining the sound signal to be output according to the mapping matrix; and outputting the sound signal to be output to a corresponding microphone. According to the method and the system, the neural network is utilized for completing output of the surround sound so that the output surround sound is more accurate and the listening effect of the user is improved.

Description

technical field [0001] The present application relates to the technical field of sound output, in particular to a method and system for outputting surround sound. Background technique [0002] Dolby Audio Code3 (AC-3 for short, but more popularly known as Dolby Digital) is an audio coding format developed for high-definition TV (High-Definition TV, HDTV) applications. Encode five full-band (3Hz-20000Hz) audio tracks and one low-frequency (3Hz-120Hz) audio track into a data stream through lossy compression. The compression algorithm it uses will delete part of the sound detail information that is not easy for the human ear to hear, so that a compression ratio of 10:1 can be achieved. The Dolby Digital standard has been widely used in the film industry, and it can be seen in most DVD video discs, and almost all DVD players can support this standard. [0003] Existing methods for producing multi-channel surround sound include the following two types: [0004] One is to build...

Claims

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Application Information

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IPC IPC(8): H04S3/00H04R5/00
Inventor 郑明宝
Owner CHINA DIGITAL VIDEO BEIJING
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