Cochlea a protein motor called prestin on their outer membranes; it generates additional movement that couples back to the fluid–membrane wave. This "active amplifier" is essential in the ear's ability to amplify weak sounds. The active amplifier also leads to the phenomenon of soundwave vibrations being emitted from the cochlea back into the ear canal through the middle ear (otoacoustic emissions). Otoacoustic emissions are due to a wave exiting the cochlea via the oval window, and propagating back through the middle ear to the eardrum, and out the ear canal, where it can be picked up by a microphone. Otoacoustic emissions
Would You Believe? (The Hollies album) Would You Believe? (The Hollies album) Would You Believe? is an album by the Hollies, released in 1966. It features a cover of Simon and Garfunkel's "I Am a Rock," which displayed progression for the band at the time – the rising folk-rock nascent was on the horizon. However, "Would You Believe" also features covers of Buddy Holly's "Take Your Time" and Chuck Berry's "Sweet Little Sixteen" — by 1966, R&B and blues covers were becoming passé. Another sign of growth for the band on "Would You Believe" includes the Evie Sands cover, "I Can't Let Go", a major hit