“Possibly, if you cloned a number of people, raised them without any exposure to society, and forced air through their vocal tracts, they might produce different overall sounds, depending on race, and purely as a matter of physiology and acoustics. Right now, however, there’s no real evidence of a characteristic physiological voice produced by people of different races. What differences there are, physiologically, are more than overwhelmed by age, health, and the deliberate use of the social voice.”
