So you're in FL Studio 12. Let's say you want to edit audio, or want to correct or manipulate pitch of an audio file. What effect will you turn to? FL Studio's NewTone of course. Here's why.
If you want to edit and manipulate your audio's pitch in FL Studio, you're going to need to look into using its NewTone effect. In this article, we'll look at adding the NewTone effect to your audio, as well as how to correct and edit the pitch data on that audio.  
Read the article in it's entirety at Ask.Audio