What is the primary purpose of tympanometry in relation to hearing?

The primary purpose of tympanometry is to determine the middle ear's sound transmission function. This test assesses how well sound is transmitted through the middle ear by measuring the compliance of the tympanic membrane (eardrum) and the mobility of the ossicles (the tiny bones in the middle ear). Tympanometry provides valuable information about the status of the middle ear, including conditions such as fluid behind the eardrum, perforated eardrum, or Eustachian tube dysfunction, which can affect hearing.

In contrast, assessing sound levels in the inner ear focuses on different aspects of auditory function, while testing types of hearing loss often involves audiometric testing rather than tympanometry. Evaluating speech clarity typically includes different tests that are aimed at understanding the ability to comprehend speech, rather than examining middle ear function directly. Therefore, option C accurately reflects the specific role of tympanometry in audiology.