THE AUDITORY MODELING TOOLBOX

Applies to version: 1.5.0

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demo_lopezpoveda2001 - Widening of filters in the lopezpoveda2001

Description:

This script displays three auditory spectrograms generated using the lopezpoveda2001. The input signal is the same, just presented at three different levels. The purpose is to visualize the broading of the auditory filters at higher input levels.

demo_lopezpoveda2001_1.png

Greasy at 50 dB

This figure shows the lopezpoveda2001 of an input speech signal with a level of 50 dB SPL.
demo_lopezpoveda2001_2.png

Greasy at 70 dB

This figure shows the lopezpoveda2001 of an input speech signal with a level of 50 dB SPL.
demo_lopezpoveda2001_3.png

Greasy at 90 dB

This figure shows the lopezpoveda2001 of an input speech signal with a level of 50 dB SPL.

References:

E. Lopez-Poveda and R. Meddis. A human nonlinear cochlear filterbank. J. Acoust. Soc. Am., 110:3107--3118, 2001.