Spectral and temporal processing in the human auditory system

Authors

  • Torsten Dau Centre for Applied Hearing Research, Ørsted•DTU, Technical University of Denmark, DK-2800 Lyngby, Denmark
  • Morten L. Jepsen Centre for Applied Hearing Research, Ørsted•DTU, Technical University of Denmark, DK-2800 Lyngby, Denmark
  • Stephan D. Ewert Medical Physics, University of Oldenburg, D-26111 Oldenburg, Germany

Abstract

An auditory signal processing model is presented that simulates psychoacoustical data from a large variety of experimental conditions related to spectral and temporal masking. The model is based on the modulation lterbank model by Dau et al. [J. Acoust. Soc. Am. 102, 2892-2905 (1997)] but includes the dual-resonance non-linear (DRNL) lterbank suggested by Lopez-Poveda and Meddis [J. Acoust. Soc. Am. 110, 3107-3118 (2001)] to simulate the non-linear cochlear signal processing, as well as several other modi cations at later processing stages motivated by other recent ndings. The model was tested in conditions of tone-in-noise masking, intensity discrimination, spectral masking with tones and narrowband noises, forward masking with (on- and off-fre- quency) noise- and pure-tone maskers, and amplitude modulation detection using different noise carrier bandwidths. One of the key properties of the model is the combination of the fast-acting cochlear compression with the slower compression realized in the adaptation stage of the model. Both play a crucial role for the success of this model.

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Additional Files

Published

2007-12-15

How to Cite

Dau, T., Jepsen, M. L., & Ewert, S. D. (2007). Spectral and temporal processing in the human auditory system. Proceedings of the International Symposium on Auditory and Audiological Research, 1, 21–32. Retrieved from https://proceedings.isaar.eu/index.php/isaarproc/article/view/2007-03

Issue

Vol. 1 (2007): Auditory Signal Processing in Hearing Impaired Listeners

Section

2007/1. Auditory signal processing and perception

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