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Voice enhancing method, voice enhancing device, voice enhancing equipment and storage medium

A voice enhancement, target voice technology, applied in voice analysis, instruments, etc., can solve the problems of not meeting real-time requirements and large amount of calculation, and achieve the effect of meeting real-time requirements, small amount of calculation, and improving the effect of voice enhancement.

Inactive Publication Date: 2019-08-02
BEIJING SINOVOICE TECH CO LTD
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Problems solved by technology

It aims to solve the problems that the existing speech enhancement methods have a large amount of calculation and do not meet the real-time requirements

Method used

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  • Voice enhancing method, voice enhancing device, voice enhancing equipment and storage medium
  • Voice enhancing method, voice enhancing device, voice enhancing equipment and storage medium
  • Voice enhancing method, voice enhancing device, voice enhancing equipment and storage medium

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Embodiment Construction

[0024] The following describes specific implementations of the present invention, which are schematic and intended to reveal the specific working process of the present invention, and should not be construed as further limiting the protection scope of the claims.

[0025] see figure 1 , the embodiment provides a speech enhancement method, and the method can be used as a pre-processing link of speech signal application technologies such as speech recognition and speech coding, and can be applied to a speech enhancement system. Such as figure 2 As shown, the speech enhancement system mainly includes a microphone array 10 , an audio decoder 20 , a digital signal processor 30 and a DA converter 40 connected in sequence. Wherein, the microphone array 10 is used to collect sound, and convert the collected sound into a noisy signal represented by an analog quantity; the audio decoder 20 is used to digitally sample and convert the noisy signal, and convert the The final data is sen...

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Abstract

The invention relates to the technical field of voice signal processing, and provides a voice enhancing method, a voice enhancing device, voice enhancing equipment and a storage medium, and aims at solving the problems that the calculation quantity of an existing voice enhancing method is great, and the real-time requirement cannot be met. The voice enhancing method comprises the following steps of obtaining a current frame of noisy signal collected by a microphone array, wherein the current frame of noisy signal at least comprises sound signals respectively sent out by a target voice sound source and other sound sources; by using the current frame of noisy signal, determining a time frequency mask corresponding to the current frame of noisy signal; determining wave filter coefficient corresponding to the current frame of noisy signal by using the time frequency mask; by using the wave filter coefficient, performing noise enhancing processing on the noisy signal. According to the invention, during the time frequency mask calculation, only one frame of noisy signal is needed to be processed, so that the calculation quantity is small; the real-time requirements can be met.

Description

technical field [0001] The present invention relates to the technical field of speech signal processing, in particular to a speech enhancement method, device, equipment and storage medium. Background technique [0002] The performance of many speech processing systems degrades dramatically in noisy environments. As an effective preprocessing technique to solve noise pollution, speech enhancement has always been a hot spot in the field of speech signal processing. The purpose of speech enhancement is to extract the original speech signal as pure as possible from the noisy signal, improve the signal-to-noise ratio, and improve the speech quality. [0003] In the prior art, the general principle of speech enhancement is as follows: first, filter the noisy signal through Fourier transform or short-time Fourier transform by using filter coefficients to obtain an enhanced frequency domain signal; The frequency-domain signal is inversely Fourier-transformed to obtain an enhanced ...

Claims

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Application Information

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IPC IPC(8): G10L21/0216G10L21/0224G10L21/0232
CPCG10L21/0216G10L21/0224G10L21/0232G10L2021/02166
Inventor 汪法兵李健张连毅武卫东
Owner BEIJING SINOVOICE TECH CO LTD
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