title: Efficient time-domain simulation of nonlinear, state-space, transmission-line models of the cochlea (L).
abstract: Nonlinear models of the cochlea are best implemented in the time domain, but their computational demands usually limit the duration of the simulations that can reasonably be performed. This letter presents a modified state space method and its application to an example nonlinear one-dimensional transmission-line cochlear model. The sparsity pattern of the individual matrices for this alternative formulation allows the use of significantly faster numerical algorithms. Combined with a more efficient implementation of the saturating nonlinearity, the computational speed of this modified state space method is more than 40 times faster than that of the original formulation.
authors.affiliation: Institute of Sound and Vibration Research, University of Southampton, Highfield Campus, Southampton SO17 1BJ, United Kingdom.
authors.forename: Shuokai
authors.initials: S
authors.lastname: Pan
authors.affiliation: Institute of Sound and Vibration Research, University of Southampton, Highfield Campus, Southampton SO17 1BJ, United Kingdom.
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Elliott
authors.affiliation: School of Engineering and Computer Science, Victoria University of Wellington, P.O. Box 600, Wellington 6140, New Zealand.
authors.forename: Paul D
authors.initials: PD
authors.lastname: Teal
authors.affiliation: Institute of Sound and Vibration Research, University of Southampton, Highfield Campus, Southampton SO17 1BJ, United Kingdom.
authors.forename: Ben
authors.initials: B
authors.lastname: Lineton
mesh_terms: D000465:Algorithms; D003051:Cochlea / Q000033:anatomy & histology / Q000502:physiology*; D003198:Computer Simulation; D006801:Humans; D040542:Mechanotransduction, Cellular; D008954:Models, Biological; D009038:Motion; D017711:Nonlinear Dynamics; D009716:Numerical Analysis, Computer-Assisted; D011312:Pressure; D013016:Sound; D013997:Time Factors