its pretty much exactly the same engine as fallout new vagas, which isnt the same engine as oblivion. as far as i know... if you listen you will hear a lot of the fallout audio. but there is nothing in the game that is from oblivion as far as i know.
1 Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. 2  The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear.
Sound travels from the external environment >external auditory canal > tympanic membrane (where vibrations begin) > The vibrations travel through the middle ear > oval window into the inner ear (where they travel through the cochlear fluid 'perilymph and endolymph') > receptors (hair cells) of organ of Corti.