It is the process of producing vocal sound by the vibration of the vocal folds.

• A. Pause
• B. Filler
• C. Phonation
• D. Channel

Answer: (C)

Phonation is the process of producing vocal sound through the vibration of the vocal folds. As you exhale, air from the lungs pushes up, the vocal folds come together, and they vibrate rapidly, creating a pulse in the airflow that becomes the sound source for voiced sounds such as vowels and many consonants. The speed of these vibrations determines pitch—tighter, faster vibration raises pitch, while looser, slower vibration lowers it. Whether the folds vibrate or not also distinguishes voiced from voiceless sounds: phonation occurs with vibration, whereas sounds produced without vibration come out as voiceless. This idea sits at the heart of how we turn breath into voice, and it helps explain why some sounds buzz (are voiced) while others do not.