THEimpedancemetry bụ nyocha nke bụ akụkụ nke akwụkwọ nguzozi na ihe omume nke ntị anụrị. Ọ mejupụtara n'ụzọ nke inyocha rigidity nke akpụkpọ anụ tympanique ya mere ikike ya ibufe ụda vibrations.

A na-eji nyocha ahụ nyochaa ọnọdụ igwe nke usoro mgbasa ozi ụda, ma na-anabatakwa ụda dị elu. 

Dọkịta ahụ nwere ike ịchọpụta a ogbi, nsogbu ntị, chọpụta ọnụnọ nke otitis ma ọ bụ mgbaji ma ọ bụ nkwụsị nke ọkpụkpụ.

Ka anyị cheta, iji ghọta nke ọma, ụzọ a na-ebufe ụda:

• site n'ikuku ikuku: ụda a na-apụta na-emepụta vibrations na ikuku nke pinna na oghere ntị nke ntị na-eburu.ntị elu). Ha na-ama jijiji ntị-ịgba nke na-ebuga ozi na yinye nke ossicles (hama, anvil and stirrup, n'etiti ntị) na cochlea (ntị n'ime). Nke a na-agbanwe ụda ka ọ bụrụ ozi ụjọ nke ụbụrụ nwere ike ịkọwa.

• site na ọkpụkpụ ọkpụkpụ: na nke a, a na-agbasa vibrations a na-etinye na okpokoro isi n'ime ọkpụkpụ na-agafeghị na ngwa mgbasa ozi etiti.