AnsweredAssumed Answered

Secondary path expectation with sigma studio

Question asked by jcl on Feb 20, 2018

Hello! I am interested in using FxLMS algorithm to reduce the ambient noise with ADAU 1452. My first plan is to use the Filtered NLMS function in sigma studio. However, as you know, I have to calculate the secondary path filter coefficient to use Filtered NLMS function. 

However, I was not able to find a good example about this in engineering zone. Moreover, (for me) there were no ways to extract the coefficient from NLMS function which is the way to find transfer function in real time.(I tried to make an offline project to find the coefficient) 

 

Can you help me to extract transfer function between a speaker and a microphone with sigma studio to fill in secondary path filter coefficient? 

 

Sincerly

Jongchan, Lee

Outcomes