Some people are shy or don't really have the confident to show their talent like singing. Getting a better singing voice is not just in the hands of singing coaches as like any skill as long as you gain the knowledge and practice from somewhere you can master it. In today's world, you can now have a software for singing lesson. At some point of you, there's a question like how to sing properly.
So with the software that you can found in the internet, it will be useful for you to learn some techniques and right way to sing.