ChiToolbox is an open source MATLAB toolbox to facilitate processing of data from infrared and Raman spectroscopy, and secondary ion mass spectrometry experiments. It can handle single spectra, collections of spectra and hyperspectral images.
https://bitbucket.org/AlexHenderson/chitoolbox/
This video is from an impromptu presentation at the Chemometrics in Vibrational Spectroscopy webinar programme organised by the Raman Imaging Group in the Faculty of Chemistry, Jagiellonian University in Kraków, 14 July 2020.
The presentation was unplanned, hence the somewhat haphazard performance!