Want to mix and scratch like a professional DJ? To be a good DJ you need to understand the concepts of mixing tracks, adding cool effects, and of course you need a good sense of rhythm to line up the beats. This how to video explains how to sample your voice on a DJM-400 mixer. This video shows you how to sample your voice and incorporates it into the music and have some fun in a loop sample. Watch this DJ tutorial and you can learn how to sample your voice on a DJM-400 mixer.