# THE AUDITORY MODELING TOOLBOX

Applies to version: 1.1.0

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## Usage

outsig = adaptloop(insig,fs,limit,minspl,tau);


## Description

adaptloop(insig,fs,limit,minspl,tau) applies non-linear adaptation to an input signal insig sampled at a sampling frequency of fs Hz. limit (in arbitrary units) is used to limit the overshoot of the output. minspl determines the lowest audible SPL of the signal (in dB). minlvl is minspl but expressed as a linear amplitude to be directly passed to the core of adaptloop. In order to be recognized as a valid minlvl, it needs to be 0 < minlvl < 1. tau is a vector with time constants involved in the adaptation loops. The number of adaptation loops is determined by the length of tau.

adaptloop(insig,fs,limit,minspl) does as above, but uses the values for tau determined in Dau. et al (1996a).

adaptloop(insig,fs,limit) does as above with an minspl of 0 dB.

adaptloop(insig,fs) does as above with an overshoot limit of $$limit=10$$.

adaptloop takes the following flags at the end of the line of input arguments:

## References:

H. Relaño-Iborra, J. Zaar, and T. Dau. A speech-based computational auditory signal processing and perception model. J. Acoust. Soc. Am., 146(5), 2019. [ www: ]

J. Breebaart, S. van de Par, and A. Kohlrausch. Binaural processing model based on contralateral inhibition. I. Model structure. J. Acoust. Soc. Am., 110:1074--1088, August 2001.

T. Dau, D. Pueschel, and A. Kohlrausch. A quantitative model of the effective signal processing in the auditory system. I. Model structure. J. Acoust. Soc. Am., 99(6):3615--3622, 1996a.

T. Dau, B. Kollmeier, and A. Kohlrausch. Modeling auditory processing of amplitude modulation. I. Detection and masking with narrow-band carriers. J. Acoust. Soc. Am., 102:2892--2905, 1997a.

T. Dau, B. Kollmeier, and A. Kohlrausch. Modeling auditory processing of amplitude modulation. II. Spectral and temporal integration. J. Acoust. Soc. Am., 102:2906--2919, 1997b.

D. Pueschel. Prinzipien der zeitlichen Analyse beim Hoeren. PhD thesis, Universitaet Goettingen, 1988.