Final answer:
Voice-pitch analysis is the measurement of the pitch of a person's voice by examining the frequencies of sound waves produced by the vocal cords.
Step-by-step explanation:
Voice-pitch analysis is the process of measuring the pitch of a person's voice. It is a way to analyze and understand how high or low a person's voice is. This analysis is done by examining the frequencies of sound waves produced by the vocal cords. Different frequencies correspond to different pitches. For example, a high-frequency sound wave is perceived as a high pitch, while a low-frequency sound wave is perceived as a low pitch.