I remembered this a few days ago and was meaning to post it on here. Back in school, in a long hall way in one of our blocks I used to walk across everyday. There was one certain point where my ears sort of changed frequency (You know how you here a certain tone of white noise, then it suddenly changes drastically and you think, wtf?). This happened at the EXACT spot 3-4 times a week. I still don't know what it was that was causing it. Can anyone shed some light? Cheers.
air pressure, lots of computer monitors in the area maybe? (they make that high pitched annoying sound when they are in large numbers) Could be the wires in the walls... Aliens? Ghosts? for those who are going to go that route
It's probably caused by air pressure, as nothing else seems to provide closure to this phenomenon. I've frequently experienced this phenomenon in many places, although it was not as interesting to me, and I never attempted to discern commonalities between successive iterations of this phenomenon, let alone attempted to discern which commonalities were causal.
It's in a long building with all the same features throughout (nothing that changes radically). No computers, evenly spaced windows. It happened at the EXACT spot. I know it isn't too important, but once I find something I don't know, it tends to stay on my mind.
I'd bet the effect magnifies as you bring your head closer to one of the walls (or the floor/ceiling). If this nullifies the effect, then it is only at one location, presumably where wave fronts interfere constructively. If not, it's a single source causing it. All my money is guessing that it's an electrical device causing temporary auditory fatigue. I've also experienced it with a certain material, which my friend confirmed would give him high frequency auditory fatigue when we smacked it with a towel. I know, weird thing to do to a friend, but it confirmed that I wasn't hallucinating. I think a lot of things we wouldn't expect can give off high frequencies at high intensity. I think beat phenomenon (the doubly periodic intensity-superposition of two interfering wave fronts with unequal frequencies) might also contribute to this, since our ears become fatigued more easy by rapidly changing intensities than by a constant intensity. There are good reasons for why our ears behavior peculiarly, but I have not the personality or information to explain these reasons impromptu.
Probably electrical? I used to be able to tell the tube (CRT) tv was on just by hearing the static. My led tv is dead silent.
Ok, so, here's the thing. I've been wanting to bring this up to people and see if my lady and I are hearing things. So about 2 years ago we were at her parents house in the boonies (sticks)for dinner and to spend some family time. We put on the tv, which only got like 8 channels. None of which were really that clear but hey that's not why we were there right. Anyway after channel surfing,we stopped on the grammys I believe. I know it was an award show but can't remember exactly which. About 5 minutes in I kept hearing a very faint but distinct sound. Almost like an alarm or a siren, every 3 seconds or so it would go off again. At this point it was just her and I in the living room so I quickly muted the t.v. and got a weird look. After explaining myself and realizing that the sound was on the TV I pointed it out to her and low and behold we would both hear it. Every couple seconds it would do it again. It lasts for about 1.5 seconds and then nothing. We thought it was really strange but chalked it up to maybe the horrible signal in the middle of nowhere. Few days later we forgot about it until we put the TV on again. There it was. Mainly on public TV channels, mainly award shows. I say award shows because there is always a pause every once in awhile making it possible to hear. It could very well be on every channel but it's hard to hear. I thought I was crazy but the fact that my completely sober lady hears it makes me feel better. Well somewhat. Anyone else experience anything like that? Sent from my SAMSUNG-SM-N920A using Grasscity Forum mobile app
Pressure It was probly an area where the wind funneled around or something and as you walk into it, you notice it with your ears -Yuri
Could be acustics. given the location of where it happens, the sound waves cancel out. I don't see pressure being the cause as amount of people in room or volume never being mention. I would wager it how the sound waves are bouncing around, and you found a spot where a little cancelation happens.