I'm sure you've heard of this term before. People usually complain about having to do it. I won't lie to you. It's not fun. But it's an absolute MUST for any half-decent UTAUloid. It really does make a world of difference in the overall quality of your bank.
This is a really difficult process to describe with text and still images, so below I have listed the links to a couple helpful tutorial videos. If these aren't enough, there are other tutorials available across YouTube as well.