spontaneous otoacoustic emissions การใช้

Objective tinnitus can most often can be heard as a sound outside the ear, as spontaneous otoacoustic emissions ( SOAEs ) that can form beats with and lock into external tones.
Broadly speaking, there are two types of otoacoustic emissions : spontaneous otoacoustic emissions ( SOAEs ), which can occur without external stimulation, and evoked otoacoustic emissions ( EOAEs ), which require an evoking stimulus.