Revealing hidden information with quadratic products of acoustic field amplitudes

Hi, it is possible to implement this kind of revelation as a plugin in audacity?
I’m curious what is hidden in my recorded voice :slight_smile:
phys.org/news/2018-11-revealing-hidden.html
journals.aps.org/prfluids/abstract/10.1103/PhysRevFluids.3.11050

Michael

Your first link is about sonar. Do you have a Sonar recording?

Your second link goes to “page not found”.