Here you see a highspeed videoclip of a male singer singing with distortion in Overdrive. The  singers starts in Overdrive and then add and remove the distortion and rattle.

Notice the progressive narrowing of the supra glottis structure with Overdrive. The front and the back of the laryngeal opening approach each other, making the opening of the larynx more narrowed and the cuneiforms are rolled in even more than in Curbing.

Also notice the laryngeal gestures for distortion. Again you can see the additional narrowing with the distortion, and especially the false cords coming in and are vibrating, creating the distortion. Also there is medial- lateral constriction of the false folds and an anterior-posterior narrowing and the larynx is slightly raised.


Combined effects can be done safely.

Notice that the waveform of the vocal mode is maintained during the distortion and rattle.  This indicates that the vibrations of the vocal folds are unhindered and unaffected by the distortion and rattle. So the vocal folds are vibrating freely under the distortion and rattle. This makes sense because the we know that the distortion and rattle is taking place higher in the vocal tract and not on the 1st level (the level of the vocal folds).

