title: MEASUREMENT OF AMPLITUDE AND DELAY OF STIMULUS FREQUENCY OTOACOUSTIC EMISSIONS.
abstract: Although stimulus frequency otoacoustic emissions (SFOAEs) have been used as a non-invasive measure of cochlear mechanics, clinical and experimental application of SFOAEs has been limited by difficulties in accurately deriving quantitative information from sound pressure measured in the ear canal. In this study, a novel signal processing method for multicomponent analysis (MCA) was used to measure the amplitude and delay of the SFOAE. This report shows the delay-frequency distribution of the SFOAE measured from the human ear. A low level acoustical suppressor near the probe tone significantly suppressed the SFOAE, strongly indicating that the SFOAE was generated at characteristic frequency locations. Information derived from this method may reveal more details of cochlear mechanics in the human ear.
authors.affiliation: Oregon Hearing Research Center, Department of Otolaryngology and Head & Neck Surgery, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239.
authors.forename: Tianying
authors.initials: T
authors.lastname: Ren
authors.affiliation: Department of Radiology Nuclear Medicine, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242.
authors.forename: Jiefu
authors.initials: J
authors.lastname: Zheng
authors.affiliation: Oregon Hearing Research Center, Department of Otolaryngology and Head & Neck Surgery, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239.
authors.forename: Wenxuan
authors.initials: W
authors.lastname: He
authors.affiliation: Oregon Hearing Research Center, Department of Otolaryngology and Head & Neck Surgery, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239.
authors.forename: Alfred L
authors.initials: AL
authors.lastname: Nuttall