Open your jaw and make an "O" shape with your lips. Pull your tongue back to the back of your throat. The tighter you pinch the back of your throat, the higher the pitch of your growl will be. Move your tongue forward slightly and loosen the pinch, and your growl will be a little lower.
Can humans roar like lions?
Vocal folds are just another name for vocal cords, and they are a bit different in lions and tigers than in other species. ... And humans speak in a range of sound frequencies similar to those of lions' and tigers' roars, but obviously our voices are much softer.