STM MATLAB functions

MATLAB functions to compute spectrotemporal modulation representations from audio signals. This pipeline allows you to:

• compute a cochlear spectrogram
• estimate a spectrotemporal modulation profile (MPS/MRF)

Example output

Spectrogram

Modulation profile

Getting started

Add the functions to your MATLAB path:

addpath(genpath('path_to_repo/functions'));

Then run one of the scripts in the examples/ folder.

Dependencies

This code requires:

• MATLAB
• Auditory Modeling Toolbox (AMToolbox) Download AMToolbox: https://amtoolbox.org Add it to your MATLAB path:

addpath(genpath('path_to_amtoolbox'));

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Example audio

The example audio file is derived from the LJ Speech Dataset (public domain):
https://keithito.com/LJ-Speech-Dataset/

Data availability

Data are available on Zenodo:

Huet, M.-P., & Elhilali, M. (2026). The shape of attention reflects flexible filtering of natural speech modulations. [Data set]. Zenodo. https://doi.org/10.5281/zenodo.19745687

Reference

If you find the code useful for your research, please consider citing:

@article{huet2025shape,
  title={The shape of attention: How cognitive goals sculpt cortical representation of speech},
  author={Huet, Moira-Phoebe and Elhilali, Mounya},
  journal={bioRxiv. https://doi.org/10.1101/2025.05.22.655464},
  year={2025}
}