apophonia
/æpəˈfoʊniə/Definitions
1. noun
A rare or obsolete word for a sudden, involuntary change in the voice, especially a change in pitch.
“The doctor explained that the patient’s apophonia was a symptom of her underlying neurological condition.”
2. noun
A term used in rhetoric to describe a sudden shift in tone or style in speech or writing.
“The orator’s apophonia added drama and emphasis to her impassioned speech.”