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Regional type de-noising device and method

A noise reduction and regional technology, applied in speech analysis, instruments, etc., can solve the problem that the noise cannot be eliminated well, and achieve the effect of enhancing the singing effect

Pending Publication Date: 2017-12-01
安徽硕威智能科技股份有限公司
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AI Technical Summary

Problems solved by technology

[0004] The noise elimination device and method use the principle of sound wave positive and negative offset to eliminate noise, but the external noise is constantly changing and cannot effectively eliminate noise.

Method used

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  • Regional type de-noising device and method
  • Regional type de-noising device and method

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Embodiment

[0041] see figure 1 and figure 2 , the present invention provides a technical solution:

[0042] A regional noise reduction device, comprising:

[0043] Background speech processing module, it is made up of successively connected background speech receiving module, the first speech spectrum measurement unit, the first speech spectrum analysis module and speech spectrum storage module;

[0044] On-site speech processing module, it is made up of on-the-spot speech receiving module, the second speech spectrum measurement unit, analog-to-digital conversion module, digital signal processing module, signal transmission module, digital-to-analog conversion module and the second speech spectrum analysis module connected successively;

[0045] Audio filtering module, which is connected to the speech spectrum storage module and the second speech spectrum analysis module;

[0046] An audio acquisition module, which is connected with the audio filtering module;

[0047] An audio proc...

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Abstract

The invention discloses a regional type de-noising device and a method; the regional type de-noising device comprises a background voice processing module; the background voice processing module comprises a background voice receiving module, a first voice spectrum measuring unit, a first voice spectrum analysis module and a voice spectrum storage module connected in sequence; the de-noising device also comprises a field voice processing module formed by a field voice receiving module, a second voice spectrum measuring unit, an analog-digit conversion module, a digit signal processing module, a digit-analog conversion module and a second voice spectrum analysis module connected in sequence; the de-noising device also comprises an audio frequency filtering module connected with the voice spectrum storage module, the second voice spectrum analysis module, and an audio frequency acquisition module; an audio frequency processing module is connected with the audio frequency acquisition module and a loudspeaker. The de-noising device and method can compare voice spectrum data, compare the singing field noisy voice spectrum data with the singer voice spectrum data, and keep the singer voice data in the singing field, thus eliminating field noises.

Description

technical field [0001] The invention relates to the technical field of noise elimination, in particular to an area-type noise elimination device and a method thereof. Background technique [0002] Environmental background noise has a great impact on the performance of the live singing audio system. Improving the performance of the live singing audio system is a key point in the research of the live singing audio system. The singer's voice is denoised to improve the sound quality of the live broadcast. [0003] Chinese Invention Patent Publication No. CN101989431A provides a noise elimination device and method, the core technology of which is as follows: the noise elimination device includes a signal pickup unit and a signal processing unit electrically connected, and the signal pickup unit is used to pick up background noise The audio signal and the mixed audio signal composed of the background noise and the call voice signal, the signal processing unit is used to receive t...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L21/0232
CPCG10L21/0208G10L21/0232
Inventor 王冬
Owner 安徽硕威智能科技股份有限公司
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