The variation in range of sounds from high to low in your voice when you speak is usuallyreferred…

➤ Why does pitch matter for effective communication?
Pitch helps listeners interpret meaning, intent, and emotion. Variations in pitch signal questions, confidence, uncertainty, or excitement and improve clarity and engagement. Good pitch control supports effective public speaking, teaching, and interpersonal conversation by making messages easier to follow and by preventing monotone delivery that can reduce comprehension and listener attention.