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
The Wrong Side of Where You Are Now himself. Charlie begs the others to bring back Mel. Alicia and Nick leave the stadium to find Mel. Ennis and the Vultures arrive at the stadium and unleash several trucks filled with the Infected. Back in the present, everyone in the SWAT vehicle arrives at the stadium, revealed to be filled with the Infected. "The Wrong Side of Where You Are Now" received positive reviews from critics. On Rotten Tomatoes, "The Wrong Side of Where You Are Now" garnered a 75% rating, with an average score of 7.17/10 based on 8 reviews. The episode was seen by 1.97 million viewers