AMT

MATLAB Octave · library/toolbox · established active

MATLAB/Octave toolbox of auditory models for reproducible research. Its loudness models include the Moore–Glasberg models for stationary sounds (moore1997, chen2011), time-varying sounds (glasberg2002) and binaural loudness (moore2016).

Full name	Auditory Modeling Toolbox
Repository	https://sourceforge.net/p/amtoolbox/code/
Homepage	https://amtoolbox.org
Language	MATLAB Octave
Kind	Library/Toolbox Functions to call from your own code: a Python package, a MATLAB toolbox, or a C, C++, C#, Rust or Julia library.
Group	established Described in a publication, used by others, or written by the authors of the model, with more than a year of history. A widely used toolbox for auditory modelling that also includes some psychoacoustic functions.
Licence	GPL-3.0 SourceForge lists the licence as GPLv3. The COPYING file of release 1.6.0 says that most files are under GPL 3.0 and some under other licences, each file stating its own; the headers of the loudness models (`moore1997`, `glasberg2002`, `moore2016`) allow version 3 or any later version.
Package	package `amtoolbox`
Latest release	1.6.0 (2024-10)
Last commit	2026-06-14 active
Maintainers	AMT Team, Acoustics Research Institute (Austrian Academy of Sciences)
AI assistance	not stated
Paper	Majdak, P., Hollomey, C., & Baumgartner, R. (2022). AMT 1.x: A toolbox for reproducible research in auditory modeling. Acta Acustica, 6, 19. https://doi.org/10.1051/aacus/2022011
How to cite	Cite the paper above. Name the version or commit you used.
Entry checked	8 October 2026

What it implements

Metric Edition Functions Validation (as stated) Notes

Moore–Glasberg loudness Chen et al. (2011) chen2011 standard or paper data Listed as "CHEN2011 - Fast excitation pattern estimation".

Moore–Glasberg loudness Moore, Glasberg & Baer (1997) moore1997 standard or paper data Listed as "MOORE1997 - Loudness model for stationary signals" in models/Contents.m.

Time-varying loudness (Moore–Glasberg–Schlittenlacher) Moore et al. (2016)
binaural moore2016 not stated Listed as "MOORE2016 - Binaural loudness model". The header says Josef Schlittenlacher provided the original implementation for the AMT in 2018, from code written for ANSI S3.4-2007 and ISO 532-2:2017.

Time-varying loudness (Moore–Glasberg–Schlittenlacher) Glasberg & Moore (2002) glasberg2002 standard or paper data Listed as "GLASBERG2002 - Loudness model for time-variant signals".

Metric	Edition	Functions	Validation (as stated)	Notes
Moore–Glasberg loudness	Chen et al. (2011)	`chen2011`	standard or paper data	Listed as "CHEN2011 - Fast excitation pattern estimation".
Moore–Glasberg loudness	Moore, Glasberg & Baer (1997)	`moore1997`	standard or paper data	Listed as "MOORE1997 - Loudness model for stationary signals" in models/Contents.m.
Time-varying loudness (Moore–Glasberg–Schlittenlacher)	Moore et al. (2016) binaural	`moore2016`	not stated	Listed as "MOORE2016 - Binaural loudness model". The header says Josef Schlittenlacher provided the original implementation for the AMT in 2018, from code written for ANSI S3.4-2007 and ISO 532-2:2017.
Time-varying loudness (Moore–Glasberg–Schlittenlacher)	Glasberg & Moore (2002)	`glasberg2002`	standard or paper data	Listed as "GLASBERG2002 - Loudness model for time-variant signals".

How it was validated

As reported by the project; LISQM has not run the code. Two implementations that agree can still share the same error. Kinds of evidence.

Moore–Glasberg loudness · Chen et al. (2011)

standard or paper data

Has the experiment script exp_chen2011; AMT's experiment scripts reproduce the results of the publication they are named after.

Moore–Glasberg loudness · Moore, Glasberg & Baer (1997)

standard or paper data

AMT's experiment scripts (exp_…) reproduce published results; this model has exp_moore1997.

Time-varying loudness (Moore–Glasberg–Schlittenlacher) · Moore et al. (2016)

not stated

There is no exp_moore2016 experiment script on the develop branch.

Time-varying loudness (Moore–Glasberg–Schlittenlacher) · Glasberg & Moore (2002)

standard or paper data

Has the experiment script exp_glasberg2002; AMT's experiment scripts reproduce the results of the publication they are named after.

Notes

Releases are published as downloads on SourceForge (amtoolbox and amtoolbox-full); the git repository's default branch is develop. The SourceForge project page mentions no GitHub or GitLab mirror.
Also contains bramslow2004, a loudness model considering hearing loss (AUDMOD), with the experiment script exp_bramslow2004; it has no reference entry in this list.
Neither the develop branch nor release 1.6.0 has a roughness, fluctuation strength, sharpness, tonality or annoyance model (osses2021 is a monaural perceptual-similarity model).
Python ports of some of its loudness models exist: torch_amt (glasberg2002, moore2016) and NumpyLibforPsychoAcoustic (moore1997, glasberg2002). There is no official Python package (amtoolbox and pyamtoolbox are not on PyPI).
The validation entries rest on AMT's design: each exp_… script is meant to reproduce figures of the model paper. The scripts' output was not checked for this list.

AMT

What it implements

How it was validated

Notes

Sources