Sound field expansion method, computer equipment and computer readable storage medium

An extension method and computer program technology, applied in the field of sound processing, can solve the problem of difficult to restore the three-dimensional spatial information of the vocal tract.

Active Publication Date: 2021-03-30
SHENZHEN TCL NEW-TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the existing technology, it is difficult to restore the three-dimensional spatial information of the channel through fewer channels

Method used

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  • Sound field expansion method, computer equipment and computer readable storage medium
  • Sound field expansion method, computer equipment and computer readable storage medium
  • Sound field expansion method, computer equipment and computer readable storage medium

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Embodiment Construction

[0049] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] The inventor found through research that in order to improve the three-dimensional sound effect of the sound field, a two-channel or multi-channel system is usually used to enhance the three-dimensional sound effect of the sound field. The phenomenon of strong sound influence makes the human ear only hear strong sound but not weak sound, t...

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Abstract

The invention relates to a sound field expansion method, computer equipment and a computer readable storage medium, and the method comprises the following steps: obtaining at least two sound channel signals, wherein at least two sound channel signals comprise a first sound channel signal and a second sound channel signal; obtaining a first gain signal and a third gain signal corresponding to the first sound channel signal, and a second gain signal corresponding to the second sound channel signal; obtaining a first loudness compensation signal according to the first gain signal and the second gain signal; and obtaining an output signal of the first sound channel signal according to the third gain signal and the first loudness compensation signal. Through loudness compensation, strong soundis removed, weak sound which cannot be perceived by human ears due to the masking effect is amplified and enhanced and is perceived by the human ears, the three-dimensional sound effect is improved, and a real sound field is restored and obtained.

Description

technical field [0001] The present application relates to the technical field of sound processing, in particular to a method for expanding a sound field, computer equipment, and a computer-readable storage medium. Background technique [0002] Televisions and cinemas are audio-visual products, and the picture quality and sound quality have always been the content that consumers pay attention to. In terms of sound, in addition to the quality of the output sound, the sense of presence is also an aspect that users are paying more and more attention to. The sound system of a TV is generally two-channel, which can only reproduce part of the spatial information of the sound. The sound heard by the user feels that it is transmitted from the TV, and cannot reproduce the three-dimensional spatial effect. Usually, a multi-channel playback system is used to enhance the three-dimensional spatial effect, but special program sources and multi-speaker playback conditions are required, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00G11B20/10
CPCH04R3/00G11B20/10027H04R2420/03G11B20/10
Inventor 戚炎兴
Owner SHENZHEN TCL NEW-TECH CO LTD
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