If you want to learn, then there is a thread on this site that may give you much information. It's here:
Just a thought , I know we have our technical articles section but how about a recommended reading list for both online content and physical books for new members to read and acquaint themselves with if they so desire. The point being to encourage or to further encourage self education rather...
www.audiosciencereview.com
Notice that the purpose of this thread is to educate yourself in the basics of scientific audio inquiry that has been going on for many years. Some parts are high on the mathematics, but it will address your questions quite sufficiently.
This site also has an Audio Reference section:
Formal educational posts and articles on science and engineering of digital audio. Only site admin can create new threads. But anyone can comment.
www.audiosciencereview.com
Jim