Is there a way to record my voice with a mic and use it as a characters voice in-game?

Hello there. I am trying to make a text adventure game and I would like the characters to speak when you click your option. I thought I could do this using a microphone but then remembered that I don't know how to record it. I looked this up but people are asking how to record voice inside of Unity as part of a game like Talking Tom for example. I would like to know how to record my voice but make characters speak in-game than to record my voice in -game. (sounds really confusing, hopefully someone will understand what I mean though). If you need any extra information just leave a comment. Thanks. All and any help will be appreciated.