Distributed microphone pickup system and method in complex scene

A complex scene, distributed technology, applied in speech analysis, instruments, etc., can solve problems such as difficulty in picking up sound

Pending Publication Date: 2020-05-15
声耕智能科技(西安)研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The purpose of the present invention is a distributed microphone sound pickup system and method in complex scenes to solve the technical difficulty of difficult sound pickup in complex scenes. The present invention uses a distributed microphone array to collect voice information in the application scene, and then passes the Elimination, sound source orientation, reverberation, noise reduction, mixing and other audio algorithm processing, can pick up clear desired voice signals in the presence of noise, reverberation, echo, etc., and obtain smooth and clean desired voice signals with position information , to ensure the accuracy of speech recognition in the speech interaction system

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  • Distributed microphone pickup system and method in complex scene
  • Distributed microphone pickup system and method in complex scene

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Embodiment 1

[0349] With the intensification of competition in the catering service industry, how to provide consumers with better services has become a major concern. Traditional catering services are all manual services. From introducing customers to the door, arranging seats, customers ordering food, and then waiting for the kitchen to complete the production, customers often wait for a long time, which affects the dining mood. At present, there are also WeChat applets to scan codes to order food. To a certain extent, it provides convenience for customers, but it cannot provide customers with dish introduction and recommendation.

[0350] At present, there are also researches on multimedia interactive dining tables to solve the problem of long waiting time for customers. However, in a noisy restaurant environment, it is very difficult to accurately pick up the voice information of customers. The distributed microphone array sound pickup system proposed by the present invention can effec...

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Abstract

The invention discloses a distributed microphone pickup system and method in a complex scene, and the method comprises the steps: carrying out the array layout of a plurality of microphones through adistributed structure, and picking up the voice information in an application scene; the picked voice signals are processed through audio algorithms such as noise reduction, echo cancellation and reverberation removal, so that the pickup effect is improved, and smooth and clean voice signals can be obtained; and finally, outputting the processed voice signal to control the equipment to execute corresponding operation.

Description

technical field [0001] The invention relates to the technical fields of distributed microphone array, sound source localization, noise suppression, echo cancellation, de-reverberation, sound mixing, etc., and specifically relates to a distributed microphone sound pickup system and method in a complex scene. Background technique [0002] A microphone array is a signal pickup device formed by a certain number of microphones arranged according to a specific spatial geometric distribution. Array parameters include: number of microphones, array-aperture, distance between microphone elements, spatial distribution of microphones and other geometric parameters. Microphone array signal processing is to perform correlation analysis and mixed processing on the target sound signal collected by the microphone array by using the statistical characteristics of the array element signals, so as to realize the requirements of sound source orientation, sound source separation and signal enhanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0216
CPCG10L21/0208G10L21/0216G10L2021/02082G10L2021/02166
Inventor 刘佳黄海隆弢陈龙陈静
Owner 声耕智能科技(西安)研究院有限公司
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