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Far field voice noise reduction method, system and terminal and computer readable storage medium

A technology of speech noise reduction and speech recognition engine, which is applied in the field of communication to achieve the effect of improving noise reduction performance

Active Publication Date: 2018-10-02
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a far-field voice noise reduction control method and system, a terminal, and a computer-readable storage medium to solve one or more of the above technical problems in the prior art, or at least provide a beneficial option

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  • Far field voice noise reduction method, system and terminal and computer readable storage medium
  • Far field voice noise reduction method, system and terminal and computer readable storage medium
  • Far field voice noise reduction method, system and terminal and computer readable storage medium

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Embodiment Construction

[0079] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0080] Combine below Figure 1 to Figure 14 As shown, the far-field speech noise reduction method, system and terminal of the present invention are described.

[0081] see figure 1 As shown, the far-field speech noise reduction method 100 of the present invention includes steps S101 to S105.

[0082] Firstly, through the lip recognition step S101, the user's lip features are collected, wherein the collection of the user's lip features can be completed by a camera, but it is not limited thereto. Lip features may include, but are not limited to, upper lip, lower lip, lip arch, lip tail, and lip peak, among...

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Abstract

The invention provides a far field voice noise reduction method, system and terminal and a computer readable storage medium. The far field voice noise reduction method comprises the steps that the lipfeatures of the user are acquired and the feature position value of the lip features is identified; the feature position value and the standard position value are compared, and whether the lip is inthe moving state is judged; the space position value in space of the lip in the moving state is determined; an audio signal is received towards the direction of the lip in the moving state according to the space position value; and audio processing is performed on the audio signal, wherein the standard position value is obtained through statistics, and the standard position value is the position value of the lip features when the lip is in the static state. With application of the far field voice noise reduction method, the actual speaker can be identified and voice receiving towards the direction of the actual speaker is performed and then the audio processing operation is performed so that the far field voice noise reduction performance under the noisy environment can be enhanced.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a far-field voice noise reduction method and system, a terminal, and a computer-readable storage medium. Background technique [0002] Far-field speech recognition, that is, long-distance speech recognition, has become more and more appealing in various fields represented by smart homes. [0003] At present, far-field speech recognition technology mainly picks up sound in the direction of the sound source through a microphone array. However, in some application scenarios, such as TV noise, telephone noise, etc. near the sound source, especially when the distance between the speaker and the microphone is 3 to 5 meters, the far field will be significantly affected due to the interference of noise and / or reverberation, etc. The sound collection effect of the microphone array. [0004] Therefore, how to reduce the noise performance of far-field speech is a prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0216G10L15/25G10L15/22
CPCG10L15/22G10L15/25G10L21/0208G10L21/0216G10L2021/02082G10L2021/02087
Inventor 耿雷
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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