Remove noise from an audio file

Hello all,

I would like to remove noise from an audio file containing a biological vocalization.

How can I remove only noise withouth compromise the biological part.

Thanks in advance

Answer 1

[Image Analyst]

It's the cocktail party problem. https://en.wikipedia.org/wiki/Cocktail_party_effect

Use BSS or ICA. See references below:

An ICA page-papers,code,demo,links (Tony Bell)

FastICA

Independent Component Analysis A Demo

Cocktail party demo

Sorry, I don't have MATLAB code for any of the above references and algorithms. Good luck though.