Abstract:Otoacoustic emissions (OAE) is a type of elastic wave energy produced in the cochlea, can be recorded and used to detect the health of the outer hair cells of the cochlea. At present, the transient evoked otoacoustic emissions (TEOAE) and the distortion product otoacoustic emissions (DPOAE) have their own advantages and disadvantages. The subject of this study is a much widely used stimulus frequency otoacoustic emissions (SFOAE) than other OAE. This paper presents a swept-based SFOAE measurement method. The so-called swept-tone is a kind of stimulus whose frequency changes linearly with time. The SFOAE frequency measured has a much wider range, and the resolution depends on the sweep frequency. The threeinterval paradigm was used to generate SFOAE, and the tracking filter can extract the swept SFOAE from the background noise. In this paper, the reliability, compatibility and effectiveness of the swept-tone based SFOAE are verified by comparing the results measured by the same subject at different times, comparing with the traditional methods and comparing the results measured at different scanning times. Experimental results show that the proposed SFOAE can be used to improve the detection methods clinically available for hearing loss.