The answer is simple: It depends on which definition of
sound one uses.
Definition of "sound"
noun
1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium.
2. mechanical vibrations transmitted through an elastic medium, traveling in air at a speed of approximately 1,087 feet (331 meters) per second at sea level.
If you use the first definition, the physiological definition in which a hearing being is required, the answer is no.
If you use the second definition, the physical definition in which a hearing being is not required, the answer is yes.