The Flam feature on the RD-8 allows you to create an effect that sounds like a drummer hitting a drum with 2 sticks, almost causing a delay to your voice. The flam value (0-240 sets the time between voices. To adjust this:

1. Press SETTINGS.
2. Press FLAM (STEP BUTTON 10).
3. Select the voice you wish to add flam on.
4. Use the step keys (1-64 via length navigation arrows) to enable flam on the steps you require.
5. Adjust the flam range with the DATA control to taste
6. Press SETTINGS twice to confirm