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Pickup method and system based on microphone array, electronic device and storage medium

A microphone array and microphone technology, applied in speech analysis, speech recognition, electrical components, etc., can solve the problems of high cost, increased energy consumption, slow system running speed, etc., to reduce energy consumption, save costs, and reduce the amount of calculation. Effect

Pending Publication Date: 2018-12-11
GUANGZHOU BAOLUN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing speech recognition technology is realized by one or more microphones to pick up the speech signal in the close-range or far-field environment. In the high-noise environment, the existing speech recognition technology uses complex algorithms to reduce the This method has the following defects: high cost, and a large number of calculations occupy too many resources of the system CPU, resulting in slow system operation and increased energy consumption

Method used

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  • Pickup method and system based on microphone array, electronic device and storage medium
  • Pickup method and system based on microphone array, electronic device and storage medium
  • Pickup method and system based on microphone array, electronic device and storage medium

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Embodiment 1

[0046] Embodiment 1 of the present invention discloses a sound pickup method based on a microphone array, which can better pick up voice signals in a far-field environment, especially in a high-noise environment, and can accurately pick up sound for long-distance voice control. Provides an excellent solution. This method can be implemented by hardware or / and software, please refer to figure 1 As shown, it includes the following steps:

[0047] 110. Voice activation detection.

[0048] Use one of the voice signals of the multiple voice signals picked up and output by the microphone array to perform voice activation detection, and determine whether a voice activation signal appears, if yes, perform step 120, if not, select other voice signals and repeat step 110.

[0049] The multi-channel voice signal picked up and output by the microphone array is not the final voice to be output, but the basic signal used for voice activation detection, voice enhancement and voice wake-up. ...

Embodiment 2

[0065] Embodiment 2 discloses a sound pickup system based on a microphone array corresponding to the above embodiment, please refer to figure 2 shown, which includes:

[0066] The microphone array 210 includes a plurality of microphone units, and the plurality of microphone units are used to pick up and output multiple voice signals;

[0067] The voice activation unit 220 is configured to perform voice activation detection according to at least one of the multiple voice signals, and output a voice activation result signal or a voice inactivation result signal;

[0068] The sound source localization unit 230 is configured to perform sound source localization according to the multiple voice signals to determine the sound source localization direction when the voice activation unit outputs the voice activation result signal;

[0069] The first speech enhancement unit 240 is configured to perform speech enhancement on the speech signal in the direction of the sound source locali...

Embodiment 3

[0073] image 3 A schematic structural diagram of an electronic device provided in Embodiment 3 of the present invention, such as image 3 As shown, the electronic device includes a processor 310, a memory 320, an input system 330 and an output system 340; the number of processors 310 in the computer device can be one or more, image 3 Take a processor 310 as an example; the processor 310, memory 320, input system 330 and output system 340 in the electronic device can be connected by bus or other methods, image 3 Take connection via bus as an example.

[0074] The memory 320, as a computer-readable storage medium, can be used to store software programs, computer-executable programs and modules, such as program instructions / modules corresponding to the microphone array-based sound pickup method in the embodiment of the present invention (for example, based on the microphone array The voice activation unit 220, the sound source localization unit 230, the first voice enhanceme...

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PUM

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Abstract

The invention discloses a pickup method based on a microphone array, and the method comprises the steps: using one of a plurality of voice signals, picked up and outputted by the microphone array, forvoice activation detection; performing the sound source positioning through the multi-channel voice signals outputted by the microphone array to obtain a sound source positioning direction; performing voice enhancement of the voice signal in the sound source positioning direction to obtain an enhanced voice signal; performing voice wake-up detection of the enhanced voice signal; processing the multi-channel speech signals picked up by the microphone array into an enhanced speech signal as the final picked-up voice output. The present invention also discloses a pickup system based on the microphone array, an electronic device, and a computer readable storage medium. The invention can better pick up the voice signals in a far-field environment through the voice activation detection and thevoice wake-up through the speech enhancement, especially in a high noise environment.

Description

technical field [0001] The present invention relates to the technical field of sound pickup, in particular to a microphone array-based sound pickup method, system, electronic equipment and storage medium. Background technique [0002] The existing speech recognition technology is realized by one or more microphones to pick up the speech signal in the close-range or far-field environment. In the high-noise environment, the existing speech recognition technology uses complex algorithms to reduce the This method has the following defects: high cost, and a large number of calculations occupy too many resources of the system CPU, resulting in slow system operation and increased energy consumption. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a method for picking up sound based on a microphone array, which can better detect the sound in the far-field environment through voi...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L21/0216G10L15/20G10L15/22H04R3/00
CPCH04R3/00G10L15/20G10L15/22G10L21/0208G10L21/0216G10L2021/02166
Inventor 朱正辉
Owner GUANGZHOU BAOLUN ELECTRONICS
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