Just above your vocal cords, you have another set of membranes called “false cords”. If you manipulate position and air pressure correctly, the false chords will vibrate along with your vocal chords. They are less delicate than the vocal cords, so they make a somewhat non-musical, noisy sound. With practice, you can learn to activate the false cords while producing a normal, healthy tone with your vocal chords at the same time. That’s where the scream-sing (and a lot of other interesting vocal tones) comes from.
For a pure scream, you remove the sound of your vocal folds by squeezing them tight enough or opening them wide enough that they don’t make their usual sound. You do this while still vibrating the false cords.
Latest Answers