What is Sound?

It is crucial to understand that when dealing with sound, two fundamental processes are occurring:

• the physical process that produces sound energy, which travels through the air.
• the psychological process that happens inside our ears and brains, which converts the incoming sound energy into sensations we interpret as noises, speech, and music.

Before breaking down the psychological process, i.e., our auditory system, lets first concentrate on the physical aspects of sound.