Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Microphone array speech enhancement device capable of suppressing mobile noise

A noise and voice technology, applied in the field of microphone array voice enhancement devices, can solve problems such as performance degradation, and achieve the effect of suppressing mobile noise

Active Publication Date: 2014-09-03
XIAMEN UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a microphone array speech enhancement device capable of suppressing moving noise for the shortcomings of the traditional GSC type microphone array speech enhancement algorithm, such as the performance degradation when the background noise moves.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microphone array speech enhancement device capable of suppressing mobile noise
  • Microphone array speech enhancement device capable of suppressing mobile noise
  • Microphone array speech enhancement device capable of suppressing mobile noise

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to make the technical content, features, and advantages of the present invention more obvious and easy to understand, the embodiments of the microphone array speech enhancement device capable of suppressing movement noise of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] see figure 1 The embodiment of the present invention is provided with an equidistant linear array 1 composed of 5-element microphones, an endpoint detection module 2, a speech beamformer module 3, a fixed coefficient filter module 4, a noise beamformer module 5, and a speech signal segment beam scanning module 61 . Noise signal segment beam scanning module 62 and adaptive noise canceller module 7 . The output ends of the analog-to-digital converter D of the equidistant linear array 1 formed by the 5-element microphone M are respectively connected to the input ends of the endpoint detection module 2, the voice beamformer module 3 and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a microphone array speech enhancement device capable of suppressing mobile noise and relates to a microphone array speech enhancement device. The microphone array speech enhancement device comprises an equal-interval linear array consisting of five microphones, an endpoint detection module, a speech beam-former module, a fixity coefficient filter module, a noise beam-former module, a speech signal segment beam scanning module, a noise signal segment beam scanning module and an adaptive noise canceller module, wherein an output end of the equal-interval linear array is respectively connected with input ends of the endpoint detection module, the speech beam-former module and the noise beam-former module; one path of the output end of the endpoint detection module is connected with the adaptive noise canceller module through the speech signal segment beam scanning module, the speech beam-former module and the fixity coefficient filter module; and the other path of the output end of the endpoint detection module is connected with the adaptive noise canceller module through the noise signal segment beam scanning module and the noise beam-former module.

Description

technical field [0001] The invention relates to a microphone voice enhancement device, in particular to a microphone array voice enhancement device capable of suppressing moving noise. Background technique [0002] In many voice-related application fields, such as stage, remote conference, voiceprint recognition, voice recognition and voice communication, a single isolated microphone is generally used for voice signal collection. However, in an actual environment, the microphone can pick up any sound within the pickup range, so background noise is inevitably introduced, thereby affecting the processing performance of the speech signal. [0003] By using multiple microphones arranged in a linear or circular array, intelligent voice signal processing can be achieved by combining array signal processing. The array microphone adds a space domain on the basis of the time domain and frequency domain, and processes the received space-time signals from different directions in space...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0216G10L21/0332
Inventor 童峰洪青阳周跃海李芳兰
Owner XIAMEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com