title: Nonlinear time-domain cochlear model for transient stimulation and human otoacoustic emission.
abstract: This paper describes the implementation and performance of a nonlinear time-domain model of the cochlea for transient stimulation and human otoacoustic emission generation. The nonlinearity simulates compressive growth of measured basilar-membrane impulse responses. The model accounts for reflection and distortion-source otoacoustic emissions (OAEs) and simulates spontaneous OAEs through manipulation of the middle-ear reflectance. The model was calibrated using human psychoacoustical and otoacoustic tuning parameters. It can be used to investigate time-dependent properties of cochlear mechanics and the generator mechanisms of otoacoustic emissions. Furthermore, the model provides a suitable preprocessor for human auditory perception models where realistic cochlear excitation patterns are desired.
authors.affiliation: Centre for Applied Hearing Research, Department of Electrical Engineering, Technical University of Denmark, Orsteds Plads Building 352, DK-2800 Kongens Lyngby, Denmark. save@bu.edu
authors.forename: Sarah
authors.initials: S
authors.lastname: Verhulst
authors.forename: Torsten
authors.initials: T
authors.lastname: Dau
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Shera
mesh_terms: D000161:Acoustic Stimulation; D001301:Audiometry, Pure-Tone; D003051:Cochlea / Q000033:anatomy & histology / Q000502:physiology*; D003198:Computer Simulation; D006801:Humans; D040542:Mechanotransduction, Cellular; D017711:Nonlinear Dynamics; D017084:Otoacoustic Emissions, Spontaneous; D011571:Psychoacoustics; D011930:Reaction Time; D013018:Sound Spectrography; D013997:Time Factors