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
Where the Dream Takes You the soundtrack includes three additional versions of "Where the Dream Takes You" performed in three different languages by three different artists: Jolin Tsai in Mandarin, Joey Yong in Cantonese, and Kangta in Korean. Ultimately, "Where the Dream Takes You" was both a commercial and critical disappointment despite Disney's efforts; the song has been met with generally negative reviews from music critics, who dismissed it as standard and uninspired. Jerry McCulley of Amazon.com described "Where the Dream Takes You" as "a serviceable slice of modern R&B boilerplate". Although AllMusic's Jonathan Widran believed that the song could potentially become a "pop hit",