To deepen your voice, you'll want to try and lower your pitch. To do this, relax your throat as much as possible, to avoid tightening your vocal cords. ... Emphasise sounds that allow you to deepen your voice; for example, lengthening your vowels allows you to make them sound deeper.

What causes deepened voice?

As your larynx grows, your vocal cords grow longer and thicker. Also, your facial bones begin to grow. Cavities in the sinuses, the nose, and the back of the throat grow bigger, creating more space in the face that gives your voice more room to echo. All of these factors cause your voice to get deeper.

Can you permanently raise your voice?

Yes. You can't completely change your voice, but you can definitely alter it. ... If your voice is deeper than you'd like, then you can use your upper chest voice or your head voice to sound lighter or higher in pitch. Sing up a scale from your lower notes/voice until you're comfortable with a certain pitch.