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Voice enhancement method and device based on microphone array

A microphone array and voice enhancement technology, which is used in voice analysis, telephone structure, instruments, etc., to achieve the effect of good voice enhancement experience, low computational complexity, and improved signal-to-noise ratio.

Active Publication Date: 2018-08-24
重庆瑞可利科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to solve the existing problems in the existing microphone array-based voice processing methods, the present invention aims to provide a voice enhancement experience with good effect; it can achieve real-time processing for current mainstream hardware platforms, and Speech enhancement method based on microphone array with strong robustness

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  • Voice enhancement method and device based on microphone array
  • Voice enhancement method and device based on microphone array
  • Voice enhancement method and device based on microphone array

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Embodiment Construction

[0048] The present invention will further describe in detail the technical solutions claimed in this application in conjunction with the accompanying drawings and specific implementation methods.

[0049] The technical solution claimed by the present invention includes a microphone array-based voice enhancement method and a microphone array-based voice enhancement device, the method and device are used to enhance the voice signal / audio signal light signal and improve its The signal-to-noise ratio of the output achieves a better enhancement effect of the voice / audio signal, making the voice / audio signal clearer and easier for the receiver to listen to.

[0050] combine image 3 , Figure 4 and Figure 5 , the specific steps of the microphone array-based speech enhancement method claimed in the present invention are as follows:

[0051] Step 1: Process the following two signals separately:

[0052] 1) The digital signal is divided into one frame of 20ms, and the sampling rat...

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Abstract

The invention discloses a voice enhancement method and device based on a microphone array. The method and the device can more accurately estimate the acoustic paths of reverberation and echo to betterinhibit echo and reverberation signals, so that an output voice signal reaches a higher signal-to-noise ratio, and the voice enhancement experience effect is good; and real-time processing can be achieved aiming at current mainstream hardware platforms, and the robustness is very strong. In addition, the method and the device provided by the invention increase the signal-to-noise ratio of the signal and simultaneously can greatly reduce the calculation amount of signal processing. Under the requirement of realizing the same signal-to-noise ratio, the traditional signal processing flow needs 1-3 times of calculation amount.

Description

technical field [0001] The invention relates to a voice enhancement method and device, in particular to a microphone array-based voice enhancement device. Background technique [0002] In modern communication application scenarios, people start to use more hands-free devices for calls and exchanges, such as speaker systems, video conferencing systems, laptops and tablets. In these systems, the loudspeaker is usually located in an enclosed room relatively close to the microphone. This application scenario leads to acoustic signal processing challenges that do not exist in typical non-hands-free devices, and also greatly reduces the signal-to-noise ratio (SNR) of the call as the distance between the speaker and microphone increases. [0003] In addition, in real life, in voice communication applications, there are reverberation signals and echoes in the voice signal, and the reverberation signal is very necessary in some cases, but even so the reverberation signal will have i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0216G10L21/0232H04M1/19
CPCG10L21/0208G10L21/0216G10L21/0232G10L2021/02082G10L2021/02166
Inventor 刘睿
Owner 重庆瑞可利科技有限公司