Description
Sound from a trumpet starts when a players lips vibrate against a mouthpiece. The brass tubes of a trumpet help the air vibrate at a certain pitch and make it louder. Sound is actually air that vibrates, or changes pressure very quickly (20 to 20,000 times a second), and travels as a sound wave.
The outer ear (Pinna) catches the sound wave and directs it into the inner ear, where the ear drum (Tympanic Membrane) is. The ear drum vibrates the Ossicles (three bones called the Hammer, Anvil, and Stirrup). They act as a lever which pushes against the Vestibule and moves the fluid inside to the Cochlea. The tiny hairs in the cochlea turn this pressure into electrical signals, which is then sent to the brain, using the cochlear nerve. The brain accepts the electrical signals and recognizes that it is a trumpet.
Ear artwork provided by: H.E.A.R.- Hearing Education and Awareness for Rockers, a non profit organization