This is a previous post of mine but applies in general to what you said.
Tonight, we went to a pub to hear an irish band, 4 guys playing hand held drum thingies, squeeze boxes, violins, fiddles, guitars of various sorts, flutes, accordians and bells and stuff.
These guys were totally unamplified. No electronics anywhere. Here is an interesting thing I noticed tonight in that pub room. It was about 40 feet high and at the end of the pub which was maybe 30 feet wide. We were at a table, same height as them and sitting down, and about 15 feet away from them, no one in front of us. And about 30 degrees from dead center, we were closest to the violin player, who was on our left as we faced the group.
Anyway, while I watched and listened, (and unfortuneatly for me always comparing to what stereo can do) I found that while sighted, say the drum for example, the sound came from that fairly specific area of the drum as I saw it, and the same with the violin, although there was some movement in a slight vertical angle depending on how he bowed it, sometimes it got a bit wider on the lower notes.
Anyway, close the eyes, head in exact same spot, same song playing, guess what, now I am very much aware of the echos an reverb, and the drum is now in two places, its originalish spot and somewhere near the wall where it is bouncing off of, and the violin, whoa baby, on some notes that thing extended 4 feet or so in width.
It was eye (ear) opening, the effect of sight on the brains processing of the sound. The brain certainly can refine what the sound is when it is also getting visual stimuli.....but close the eyes, and it has to "open" up to all the info coming in and try to make sense of it as best it can. Just another reminder for me about how much processing is done in the brain or ear/brain interface, and the bias that sight provides. Interestingly, in this case, there was not much height information sighted, but seemed more when not sighted, due to the brain focusing more on the reflections I suppose.
Last edited by tomelex; 02-24-2013 at 06:30 PM.