Demonstration of the Roll feature on 2, CDJ-400's.

0:00 First of all I'll give you a quick idea what the roll feature does

Alright folks, Jonathan here. This video isn't really a tutorial, it's mainly a demonstration on this guy here, it's the CDJ-400 and something called the roll feature on it. Now first of all I'll give you a quick idea what the roll feature does. We'll play the music. When we've got the roll button pressed and the lights flashing and we put our finger on the jog wheel, press it down, we get this sound. Now that's with my finger not moving. If I do exactly the same but I move the jog wheel clockwise we get a roll up.

And dependent on how fast I move that jog wheel, is dependent on how fast the roll-up sounds. As follows. Or... Like so. The opposite applies if we go anti-clockwise. Like so. Right, we'll pause that. Now then, what is happening there? I'll show you. You imagine the music's playing like so. Now you imagine at this point here, you hit... That jog wheel to get a roll. Bang! And let's say we've got someone going yes. So here, the music's playing and it's yes. So you will have yes, yes, yes, yes, yes, yes, yes. Can you see this hand here? Yes, yes, yes, yes, yes. As soon as you take your finger off the jog wheel, then you'll get to this point. Now that's very important. What doesn't happen is this. You've got the music playing and it's going yes, yes, yes, yes, yes, yes, yes. Take your finger off and then it starts off again.

1:40 All the while, all the time, whatever way you want to put it

All the while, all the time, whatever way you want to put it. But you can't hear the underlying music, you can only hear that roll. Back off and you'll get to this point. So all of a sudden there's a jump, so you've missed that tiny little bit there. So what I'm going to do now, a bit of a demonstration for you. I've got the mixer in the middle, two volumes on the mixer, exactly the same level, crossfade in the middle, and we're going to do a bit of a roll from one to the other. Yes, the beats may go off a little bit. But if you've got these guys, it'll give you a general idea of what you can do probably a lot better than me with a bit of practice. Here we go. Yes, I know. But then again, it's about having a bit of fun and of course, practice. Alright, thank you very much for watching and yes, practice and enjoy. Do you like the gloves by the way? Cold hands you see.

This transcript was produced automatically from the audio of the video and may contain mistakes.