DiPT is very weird. Tried it a few times and it mostly makes everything sound urururu super bass. Other mental effects were minor. Social scenes were awkward
I also found 2CE to affect my sense of sound. Strange rhythmic patterns seem to emerge, pretty much like the way wood grain or marble gets all patterny on shrooms or many other psychedelics. That one seemed to relate to sense of time. Most psychedelics make time feel way way slower, which 2CE does to, but the waves of temporal distortion seem to happen very very quickly. Thoughts?
The other psychedelic I found really opened up my hearing was nutmeg. I became much more sensitive to little teensy bits of sound -- air movement, electric hisses and buzzes.