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NIDCD
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How do I make a normal voice? Voicing (speaking) happens in three very quick actions:
Inhalation (taking the air in) Exhalation (letting the air out) Phonation (making a voice)
STEP
1 : INHALATION - TAKING THE AIR IN The first step in making sounds (aah and ooo, for example) is to bring air into the lungs This process is called inhalation. |
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1. During inhalation air is
brought into your body, through your nose or mouth 2. It then passes through the
top part of a tube called the voice box or larynx 3. Next the air passes through
the lower part of the air tube (the trachea) 4. Finally, the air fills your lungs
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STEP 2: EXHALATION - GETTING THE AIR OUT The next step in making a sound is to
release (exhale) the air from your lungs When air is being exhaled, it is under pressure
as it first flows through the trachea and then the larynx into the mouth or nose.
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STEP
3: PHONATION - MAKING A VOICE The air goes in - the air goes out. That's breathing.
Your voice (phonation) happens when you cause the vocal folds in the larynx
to vibrate. The vocal folds are located inside the larynx. You can get an idea where they are by putting your finger or the small bump (sometimes called your Adams apple) you can feel on the outside of your throat. The vocal folds are behind and slightly below where your finger is resting. |
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If you could look down your throat to see the top of the tube
(larynx) behind your finger, you would see the two small vocal folds. They are made up of flat muscles covered with
skin. Only the top covering of the vocal folds is visible from this top view. Just before you make a sound, the
vocal folds close together. The air pressure from the lungs builds up beneath the folds
and finally overpowers and blows them open. As the air rushes over the folds, they
vibrate and make sound. They open and close 200 to 400 times each second |
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