A modified one-parameter form of the Patterson, Irino gammachirp filters, as a front-end for auditory models, is presented here. The Theta factor of the asymmetry term, which when multiplied with the gammatone filter gives the gammachirp filter, is made to vary directly with the level of the input signal. This modified gammachirp filterbank is compared with the previously introduced compressive gammachirp filters and the fit between the two is explored. The level dependent properties of the basilar membrane filtering action are also shown to be modeled well by this modified filter.
Cite as: Kiran, G.V., Sreenivas, T.V. (2003) A One Parameter Control Gamma-chirpFilterbank for Auditory Models. Proc. Workshop on Spoken Language Processing, 41-48
@inproceedings{kiran03_wslp,
author={G. V. Kiran and T. V. Sreenivas},
title={{A One Parameter Control Gamma-chirpFilterbank for Auditory Models}},
year=2003,
booktitle={Proc. Workshop on Spoken Language Processing},
pages={41--48}
}