The Vibrator: The larynx (or voice box) sits on top of the windpipe. It contains two vocal folds (also known as vocal cords) that open during breathing and close during swallowing and voice production. When we produce voice, the airstream passes between the two vocal folds that have come together. These folds are soft and are set into vibration by the passing airstream. They vibrate very fast – from 100 to 1000 times per second, depending on the pitch of the sound we make. Pitch is determined by the length and tension of the vocal folds, which are controlled by muscles in the larynx.
The Resonator: By themselves, the vocal folds produce a noise that sounds like simple buzzing, much like the mouthpiece on a trumpet. All of the structure above the folds, including the throat, nose, and mouth, are part of the resonator system. We can compare these structures to those of a horn or trumpet. The buzzing sound created by vocal fold vibration is changed by the shape of the resonator tract to produce our unique human sound.
When our voices are healthy, the three
main parts work in harmony to provide effortless voice during speech and
singing.
The
information aims to provide educational purpose only. Anyone reading it should
consult ENT Specialists before
considering treatment and should not rely on the information above.
