Does a persons whistle depend on their voice?
When someone speaks or sings, the pitch comes from a vibration of the vocal cords. Different sizes of vocal cords have different resonances — longer and more massive vocal cords give deeper sounds than lighter, shorter ones. (The same is also true for stringed instruments.) The pitch when someone’s whistling comes from the shape of the cavity formed by the tongue, lips, etc (just like how the pitch when you blow across the top of an open bottle depends on how much liquid the bottle contains). When you whistle, the vocal cords don’t resonate. Try to sing or hum while whistling — it won’t work! Whistling is unrelated to vocal cord vibration, so there’s not a correlation with the voice.
