The pychoacoustics application icon is taken from the open clipart library http://openclipart.org/ created by user Machovka https://openclipart.org/detail/2337/headphones

The fallback icons are taken from the Oxygen project http://www.oxygen-icons.org/ 

pychoacoustics includes a copy of the 'nnresample' https://github.com/jthiem/nnresample which is released under a Creative Commons Attribution 3.0 Unported (CC BY 3.0) License (https://creativecommons.org/licenses/by/3.0/)
