Pitch

Pitch, in speech, the relative highness or lowness of a tone as perceived by the ear, which depends on the number of vibrations per second produced by the vocal cords. Pitch is the main acoustic correlate of tone and intonation.
The degree to which a sound or a musical note is high or low.

Sources:

1.Britannica Dictionary. (2024). Retrieved from https://www.britannica.com/topic/pitch-speech 2.Cambridge Dictionary. (2024). Retrieved from https://dictionary.cambridge.org/dictionary/english/pitch