Case Study
All Ears Biomechanics: Research on the middle ear helps develop new hearing aids
All Ears Biomechanics: Research on the middle ear helps develop new hearing aids UniVersit Ät stUttgart page 38 dSPACE Magazine 1/2010 · © dSPACE GmbH, Paderborn, Germany · info@dspace.com · www.dspace.comHow We Hear The hearing organ must convert air pressure fluctuations into neural impulses to make them accessible to the brain. It does so via a complex chain of elements with overlapping functions. Simply put: Sound waves enter the auditory canal as air pres- sure fluctuations and put the audi- tory ossicles (the hammer, also known as the malleus, the anvil or incus, and the stirrup or stapes) in the middle ear in motion. The foot- plate of the stapes rests on the inner ear. Behind it lies the inner ear fluid, which fills the vestibular system and the cochlea. The movements