How do we obtain different voice (none of the relations contained by this world own same voice)?

Not only do people's loud cords differ in size and tautness, but so do the sizes and shapes of the cavities within the head which form the sounds starting next to the vocal cords' buzz. These cavity have resonances which depend on their size and on the speed of nouns; this explains why inhaling helium has such interesting effects: the resonant frequencies increase because the speed of nouns in helium is nearly three times the speed of nouns in nouns.