Why do some people have a higher voice than others?
Quick Answer
Voice pitch depends mostly on the size and tension of the vocal cords. Longer, thicker vocal cords usually produce lower pitches, while shorter or thinner cords produce higher pitches.
The Full Story
Sound is produced when air from the lungs makes the vocal cords vibrate in the larynx. The pitch of the voice depends on how fast those cords vibrate, which is influenced by their length, thickness, and tension. During puberty, testosterone typically causes the larynx and vocal cords to grow, lowering pitch in many males. Adults with smaller larynges or less thick vocal folds often have higher voices. Training, hormones, age, and anatomy all contribute to the final sound of a person’s voice.
Key Facts
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