Voice noise reduction method and device, equipment and storage medium
A voice noise reduction and voice technology, applied in voice analysis, instruments, etc., can solve problems such as unclear voice and achieve the effect of improving accuracy
Pending Publication Date: 2022-04-15
北京梧桐车联科技有限责任公司
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[0003] The embodiment of the present application provides a speech noise reduction method, device, equipment and storage medium, which can solve the problem of unclear speech in related technologies
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[0073] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.
[0074] Before explaining the speech noise reduction method provided in the embodiment of the present application in detail, the application scenario provided in the embodiment of the present application is firstly introduced.
[0075] Today, with the widespread use of the Internet, terminals such as mobile phones make people's daily life more convenient and faster, and terminals can collect user voices to realize voice communication functions or other voice functions.
[0076] For example, two users in different geographic locations can perform voice communication through their respective terminals. User A sends out a voice, and the terminal of user A collects the voice and sends it to the terminal of user B who comm...
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The embodiment of the invention discloses a voice noise reduction method and device, equipment and a storage medium, and belongs to the technical field of multimedia data processing. The method comprises the following steps: acquiring a first voice signal, wherein the first voice signal comprises a plurality of frequency point signals; and determining a smoothing factor in a recursive average algorithm based on the signal power of each frequency point signal in the plurality of frequency point signals. Based on the smoothing factor, noise estimation is carried out on the first voice signal through a recursive average algorithm, a noise estimation value of the first voice signal is obtained, and the noise estimation value indicates the power of a noise signal in the first voice signal. And performing noise reduction processing on the first voice signal based on the noise estimation value. According to the embodiment of the invention, the smoothing factor is adaptively determined according to the characteristics of different voice signals, so that the accuracy of noise estimation is improved, and a pure voice signal can be obtained when noise reduction processing is carried out on the first voice signal based on the noise estimation value finally.
Description
technical field [0001] The embodiments of the present application relate to the technical field of multimedia data processing, and in particular to a speech noise reduction method, device, device, and storage medium. Background technique [0002] Voice is the most important and common communication medium in people's daily life. With the widespread application of mobile Internet terminals such as mobile phones, it is more convenient for people to communicate by voice through terminals. However, these terminals usually need to be exposed to the external environment when collecting voice, and noise signals in the external environment will also be collected by the terminal, which will cause the collected voice to be unclear due to noise interference. Therefore, there is a need for a voice noise reduction method, which can perform noise reduction processing on the voice collected by the terminal, so that the final processed voice signal is free from noise interference. Content...
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IPC IPC(8): G10L21/0208G10L21/0232G10L25/18
Inventor 王倩沈洋来杏杏
Owner 北京梧桐车联科技有限责任公司