Unlock instant, AI-driven research and patent intelligence for your innovation.

Wind noise prevention method, feedforward noise reduction system, earphone and storage medium

A feedforward, noise reduction technology, applied in the field of noise reduction, can solve problems such as poor noise reduction effect

Active Publication Date: 2020-10-09
GEER TECH CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes the feed-forward noise reduction process to be greatly affected by wind noise, resulting in poor noise reduction

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
  • Wind noise prevention method, feedforward noise reduction system, earphone and storage medium
  • Wind noise prevention method, feedforward noise reduction system, earphone and storage medium
  • Wind noise prevention method, feedforward noise reduction system, earphone and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0022] In the prior art, since the feed-forward microphone is directly exposed to the external environment, it is very susceptible to interference from the external environment, especially wind noise. This causes the feedforward noise reduction process to be greatly affected by wind noise, resulting in poor noise reduction effects. For this technical...

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

Embodiments of the application provide a wind noise prevention method, a feedforward noise reduction system, an earphone, and a storage medium, wherein the method comprises the following steps: acquiring environmental noise signals collected by at least two feedforward microphones, wherein windward sides of the at least two feedforward microphones are located on different planes; selecting a feedforward microphone corresponding to the energy noise signal that meets the energy requirement as a target microphone according to the energy of the environmental noise signals collected by the at leasttwo feedforward microphones; and performing feedforward noise reduction by using the environmental noise signal collected by target microphone as noise base. In the embodiments, the influence of windnoise on the feedforward noise reduction process can be effectively reduced, and the feedforward noise reduction effect is optimized.

Description

technical field [0001] The present application relates to the technical field of noise reduction, and in particular to a wind noise prevention method, a feed-forward noise reduction system, earphones and a storage medium. Background technique [0002] The basic principle of feed-forward noise reduction is that the feed-forward microphone set outside the earphone collects the environmental noise signal, and performs inversion processing on the environmental noise through the noise reduction filter. Phase noise reduction signal to cancel the environmental noise signal. [0003] Since the feed-forward microphone is directly exposed to the external environment, it is very susceptible to interference from the external environment, especially wind noise. This causes the feedforward noise reduction process to be greatly affected by wind noise, resulting in poor noise reduction effects. Contents of the invention [0004] Various aspects of the present application provide a metho...

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): H04R1/08
CPCH04R1/08
Inventor 于锴华洋矫珊珊王若蕙
Owner GEER TECH CO LTD