Uvula manipulation- a recognised treatment for puberphonia.
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Puberphonia, a condition where someone has a voice that sounds like a child's even into adulthood. Speech therapists use a variety of techniques to help people with puberphonia lower their voice, including:
Humming: Humming while gliding down the pitch scale helps relax the laryngeal muscles and practice using a lower pitch.
Glottal attack: Involves pushing air through closed vocal cords to produce vowel sounds.
Coughing: Applying pressure to the Adam's apple and coughing shortens the vocal folds and lowers the pitch.
Speech range masking: Involves speaking while a loud noise plays, then listening back to a recording of the voice.
Thyroid cartilage manipulation: Involves gently pushing on the thyroid cartilage while producing a vowel.
Uvula manipulation and resonance: Involves practicing voicing at a lower pitch with forcible airflow from the diaphragm.