How does pitch change

Pitch is related to frequency. Changing the number of vibrations per second changes the pitch. The pitch that a particular tuning fork generates depends on the. I can describe how changes in vibration affects the pitch and volume of sound. Essential Questions: What is difference between pitch and volume? Performance. In order to investigate how the two are related, pitch has been assigned the arbitrary unit the mel. The pitch of a Hz tone at 40 dB SPL has been given a.