• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    公众号

markostam/active-noise-cancellation: Active noise cancellation using various alg ...

原作者: [db:作者] 来自: 网络 收藏 邀请

开源软件名称(OpenSource Name):

markostam/active-noise-cancellation

开源软件地址(OpenSource Url):

https://github.com/markostam/active-noise-cancellation

开源编程语言(OpenSource Language):

MATLAB 91.5%

开源软件介绍(OpenSource Introduction):

Active Noise Cancellation Functions in Matlab and C

A bunch of functions implementing active noise cancellation using various LMS algorithms (FxLMS, FuLMS, NLMS) in Matlab and C. I wrote these as part of my final project for an Audio Signal Processing class during my masters.

I've also included a short & not very serious powerpoint of a 5 minute lightning talk I gave on the project later at the Recurse Center.

Here's a slightly more serious paper I wrote about some of my experiments with ANC and this code.

Functions:

  • LMS (Least Mean Squares): most basic canonical ANC algo
  • FxLMS (Filtered eXtended Least Mean Squares): adds an additional learned filter for the secondary path signal - signal from cancellation speakers to users ears - to account for phase problems and audio coloration added during practical noise cancellation applications
  • NLMS (Normalized Least Mean Squares): adds simple adaptively updated learning rate on top of LMS to speed convergence.
  • FxNLMS (Normalized Filtered eXtended Least Mean Squares): combines FxLMS and NLMS
  • FuNLMS (Filtered-u Last Mean Squares): adds an additional active LMS filter to FxNLMS to cancel out noise bleeding from the cancellation speaker to the error mic. Fairly robust but convergence not gaurunteed!

cool viz




鲜花

握手

雷人

路过

鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
热门推荐
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服(服务时间 9:00~18:00)

在线QQ客服
地址:深圳市南山区西丽大学城创智工业园
电邮:jeky_zhao#qq.com
移动电话:139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap