I don’t know if this is something you are looking for, but maybe it could be a starting point…
It’s something i once made - mainly to get familiar with scripting timers and to use diffrent colored widgets (which were new at that time). It was made just for fun… but maybe it’s something that could be refined regarding the scripting (adding various algoritms to weigh the particular frequencies, maybe experiment with diffrent wavefoms, automatically send the results to another application for visualization…) as well as regarding the hardware to use (calibrated headphones/speakers, additional hardware controllers for user interaction, etc).
…but it also could be the completely wrong approach for what you look for.
Just a thought, when i read “scientific listening experiment”…