Voice denoising processing method and device, computer device and storage medium

A technology of speech noise reduction and processing method, which is applied in speech analysis, instruments, etc., and can solve the problem of eliminating too many voice messages.

Active Publication Date: 2020-02-14
ZHUHAI JIELI TECH
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Problems solved by technology

[0003] During the implementation process, the inventor found that there are at least the following problems in t

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  • Voice denoising processing method and device, computer device and storage medium
  • Voice denoising processing method and device, computer device and storage medium
  • Voice denoising processing method and device, computer device and storage medium

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[0092] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0093] In one embodiment, such as figure 1 As shown, a speech noise reduction processing method is provided, including steps:

[0094] S110, when the distance between the signal acquisition devices reaches a preset value, obtain the noisy voice signal collected by the voice acquisition device, and perform frequency division processing on the noisy voice signal to obtain a low frequency band signal;

[0095] Wherein, the voice collection device may be any device for collecting voice in the field. In a specific example, the voice collection device is a microphone. The pr...

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Abstract

The invention relates to a voice denoising processing method, a voice denoising processing device, a computer device and a storage medium. The voice denoising processing method comprises the followingsteps: when detecting that the distance between a voice collecting device and a target object achieves a preset value, acquiring a noisy voice signal collected by the voice collecting device, and carrying out frequency division processing on the noisy voice signal, so that a low-frequency-band signal is obtained; acquiring a magnitude spectrum and a phase spectrum of the low-frequency-band signal; acquiring a modulation domain signal corresponding to the magnitude spectrum; processing a magnitude spectrum or a power spectrum of the modulation domain by adopting a spectrum subtraction method,thus obtaining the magnitude spectrum or power spectrum of the modulation domain after denoising; compensating the phase spectrum of the modulation domain, thus obtaining the phase spectrum of the modulation domain after compensating; and based on the phase spectrum of the modulation domain after compensating, the magnitude spectrum of the modulation domain after denoising, and the phase spectrumof the low-frequency-band signal, acquiring a low-frequency-band signal after denoising, wherein the low-frequency-band signal after denoising is used for synthesizing a denoising voice signal. Due toa smooth over-subtraction factor adopted by the spectrum subtraction method, the problem that abundant voice information is eliminated due to the oversize smooth over-subtraction factor is avoided.

Description

technical field [0001] The present application relates to the technical field of speech noise reduction, and in particular to a speech noise reduction processing method, device, computer equipment and storage medium. Background technique [0002] Noise has a great impact on speech acoustic analysis and characteristics. Various noises produce various noises in the spectrogram, which leads to the inaccurate identification and analysis of acoustic features. In the speech transmission system, the noise will cover the speech and affect whether the speech content can be heard clearly, and the excessive noise will cause the speech recognition rate to drop. For noise interference, voice noise reduction processing is required to reduce the impact of noise on voice and highlight the characteristics of voice. [0003] During the implementation process, the inventor found at least the following problems in the traditional technology: In the traditional method, there is a problem of too...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L21/0216G10L21/0232
CPCG10L21/0208G10L21/0216G10L21/0232Y02D30/70G10L25/18
Inventor 肖强肖全之黄荣均方桂萍闫玉凤
Owner ZHUHAI JIELI TECH
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