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Speech enhancement method and device, equipment and storage medium

A voice enhancement and voice technology, which is applied in the field of audio communication scenarios, can solve problems such as insufficient noise and/or echo suppression capabilities, and the inability to extract high-quality pure voice, so as to improve the effect of voice enhancement

Pending Publication Date: 2022-03-25
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing speech enhancement technology has insufficient ability to suppress the noise and / or echo in the mixed speech, resulting in the inability to extract high-quality pure speech from the mixed speech, which needs to be improved urgently

Method used

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  • Speech enhancement method and device, equipment and storage medium
  • Speech enhancement method and device, equipment and storage medium
  • Speech enhancement method and device, equipment and storage medium

Examples

Experimental program
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Embodiment approach

[0045] One possible implementation mode, this embodiment can be based on the preset voice signal processing algorithm, respectively perform feature analysis on the amplitude spectrum of the target mixed voice and the amplitude spectrum of the target interference voice, and combine the target interference voice and the target mixed voice in the feature domain The correlation between the amplitude spectrum features under each point, so as to analyze the probability (that is, the predicted probability) of the target pure speech under each point in the feature domain of the target mixed speech. For example, if the correlation between the magnitude spectrum features of the target interfering speech and the target mixed speech is large at a certain point, it means that the predicted probability of the target pure speech at this point is small; otherwise, it means that there is a target pure speech at this point. The prediction probability is high.

[0046] In another possible implem...

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PUM

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Abstract

The invention provides a speech enhancement method and device, equipment and a storage medium, relates to the technical field of artificial intelligence, in particular to the technical field of deep learning and speech, and can be used for audio communication scenes. The specific implementation scheme is as follows: performing sub-band decomposition processing on at least two paths of target voices to obtain amplitude spectrums and phase spectrums of the at least two paths of target voices; wherein the at least two paths of target voices comprise target mixed voices and target interference voices; according to the amplitude spectrums of the at least two paths of target voices, determining the prediction probability that the target mixed voices have target pure voices in the feature domain; and according to the prediction probability and the amplitude spectrums and the phase spectrums of the at least two paths of target voices, performing sub-band synthesis processing to obtain target pure voices in the target mixed voices. The speech enhancement effect can be improved, and a new solution thought is provided for speech enhancement.

Description

technical field [0001] The present disclosure relates to the field of artificial intelligence technology, in particular to the field of deep learning technology and voice technology, and can be used in audio communication scenarios. Background technique [0002] Speech Enhancement (SE: Speech Enhancement) technology is a classic technology in the field of audio communication. It mainly refers to the anti-interference technology for extracting pure voice from the noise background when the pure voice is interfered by noise and / or echo in the real environment. [0003] The existing speech enhancement technology has insufficient ability to suppress the noise and / or echo in the mixed speech, resulting in the inability to extract high-quality pure speech from the mixed speech, which needs to be improved urgently. Contents of the invention [0004] The present disclosure provides a speech enhancement method, device, equipment and storage medium. [0005] According to an aspect o...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L21/0216G10L21/0264G10L21/0232G10L25/30
CPCG10L21/0208G10L21/0216G10L21/0264G10L21/0232G10L25/30G10L2021/02082G10L2021/02161
Inventor 李光正张国昌于利标魏建强
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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