The sound of your voice comes from the movement and vibration of your vocal cords. These are 2 fold...
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The sound of your voice comes from the movement and vibration of your vocal cords. These are 2 folds of mucous membrane that stretch across your larynx, which is a tube shaped organ in your neck. When you breathe in, your vocal cords are relaxed and air passes through the larynx without producing sound Talking tightens the cords through the action of muscles and tendons within the mucous membranes, which move them closer together or further apart. Air is forced between them, which makes them vibrate, producing the sound that is your voice. Irritation, infection, or overuse can cause the vocal cords and larynx to become inflamed. When air passes through them, the sound is distorted, so that your speech sounds hoarse or there may be almost no sound - what we call losing your voice.

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