This paper describes a phenomenological model of the auditory periphery which consists of a bank of nonlinear time-varying parallel filters. Realistic filter shapes are obtained with the all-pole gammatone filter (APGF) which provides both a good approximation of the far more complex wave-propagation or cochlear mechanics models and a very simple implementation. The model also includes an active, distributed feedback that controls the damping parameter of the APGF. As a result, the model reproduces several observed phenomena including compression and two-tone suppression. It is now used to study responses to complex stimuli in models of the auditory nerve and cochlear nucleus neurons and to provide physiologically plausible front-end for speech analysis.
Cite as: Robert, A., Eriksson, J. (1998) Periphear : a nonlinear active model of the auditory periphery. Proc. 5th International Conference on Spoken Language Processing (ICSLP 1998), paper 0748, doi: 10.21437/ICSLP.1998-561
@inproceedings{robert98_icslp,
author={Arnaud Robert and Jan Eriksson},
title={{Periphear : a nonlinear active model of the auditory periphery}},
year=1998,
booktitle={Proc. 5th International Conference on Spoken Language Processing (ICSLP 1998)},
pages={paper 0748},
doi={10.21437/ICSLP.1998-561}
}