Hu, Hongmei, Sang, Jinqiu, Lutman, M.E. and Bleeck, S.
Simulation of hearing loss using compressive Gammachirp auditory filters.
In, ICASSP International Conference on Acoustics, Speech and Signal Processing, Prague, Czech Republic,
22 - 27 May 2011.
New York, US,
Institute of Electrical and Electronics Engineers4pp, .
Hearing loss simulation (HLS) systems can provide normal hearing (NH) listeners with demonstrations of consequences of hearing impairment. An accurate simulation of hearing loss can be a valuable tool for developing signal processing strategies for hearing aids. This paper presents a novel HLS system which is based on a physiologically motivated compressive gammachirp auditory filter bank to simulate several aspects of hearing loss including elevated hearing threshold, loudness recruitment and reduced frequency selectivity. The model was evaluated by speech-in-noise tests. An experiment with normally hearing and hearing-impaired listeners showed that the proposed HLS model can mimic typical hearing loss. It is concluded that a physiologically-inspired hearing loss model can perform in the same way as phenomenological models, yet has more fundamental underpinning
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