Single-track voice noise reduction method, system and device and readable storage medium

Abstract

The invention belongs to the field of voice noise reduction, and discloses a single-track voice noise reduction method, system and device, and a readable storage medium, and the method comprises the steps: obtaining to-be-denoised single-track voice; constructing an initial noise reduction model based on an LSTM neural network; obtaining a preset number of enhanced training samples, and training the initial noise reduction model by adopting the preset number of enhanced training samples to obtain a noise reduction model; and denoising the to-be-denoised single-track voice through the noise reduction model, so that a human voice audio can be obtained. The noise reduction process is not limited by double channels, noise reduction processing of any single-track voice can be realized, model training is performed on the basis of the LSTM neural network on the basis of the characteristic that the noise types of the whole time sequence in the same voice are approximately the same, the noise law of the whole time sequence is convenient to learn, and therefore, a good noise reduction effect is achieved. Meanwhile, based on the complexity of the noise influence factors, the initial noise reduction model is trained again by the enhanced training samples, and the noise reduction effect of the noise reduction model is further improved.

Description

technical field [0001] The invention belongs to the field of speech noise reduction, and relates to a monophonic speech noise reduction method, system, equipment and a readable storage medium. Background technique [0002] A few years ago, we often heard various noises during calls, which greatly affected the call quality, but now, with the popularity of smart phones, we can already feel the reduction of noise during calls. This is because most smartphones now use Qualcomm chips, and most of these chips are equipped with Qualcomm's proprietary CVC technology. CVC technology is a call noise reduction technology. The built-in dual microphones of the mobile phone acquire sound. The main microphone is near the speaker's mouth and can receive louder voices; the secondary microphone is farther away from the speaker's mouth and can receive lower However, the microphone can receive almost the same amount of environmental noise. By combining the sound signals collected by the main a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantage that the existing call noise reduction technology cannot handle monophonic audio in the above-mentioned prior art, and provide a method, system, device and readable storage medium for monophonic speech noise reduction

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