I understand what you want to explain, I even associated the sound of playback with the revolutions of the pulley on the engine.
The pulley is adjusted using the gas button, when pressed, the pulley turns, the more the pulley turns, the more the object touches the object.
As a result, the sound starts relative to the pulley speed, and at the beginning it seemed to me a solution, but unfortunately it did not lead to a solution to the problem.
The sound sometimes does not start, the faster the pulley rotates, the faster the contact with the object, and the more the sound is mistaken at startup.