At cmu, there is a building with a really long hallway that has amazing acoustics. In this experiment, i set up a feedback loop. On one end of the hallway, there is a microphone connected to a laptop. On the other end, there is a speaker connected to another laptop. The two laptops are connected via skype calling. I play with my speaker's built in eq, and play my violin to stimulate the resonant frequencies of the hall. A better set up would be to use better equipment directly connected to each other, and have a stand-alone eq to independently control what resonant frequencies are playing.
Author: Conundrumer