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Natural Science Forum / Physics / Acoustics / July 2006Please Answer My Serious Question [was re:Heaviness when listening to near ultrasound?]
Hi: Why do my ears feel heavy when listen to an electronic dog-whistle or any sine-waves around that frequency? Thanks, Radium P.S. Please respond with scientific answers and nothing else. > Hi: > [quoted text clipped - 6 lines] > > P.S. Please respond with scientific answers and nothing else. There are no scientific answers to nonsensical questions. > > Hi: > > [quoted text clipped - 6 lines] > > > > P.S. Please respond with scientific answers and nothing else. > There are no scientific answers to nonsensical questions This is not nonsense >> > Hi: >> > [quoted text clipped - 10 lines] > > This is not nonsense Describe what you mean by your ears feeling heavy. One might feel a sense of pressure when listening to high levels of ultrasound just above the upper hearing limit, but I wouldn't call it a heavy feeling. BTW, high levels of ultra sound can damage your hearing, so if you are feeling any sensation, you're risking damage. In any event, why would you be "listening" to ultrasound? On 7/5/06 8:06 PM, in article R2%qg.5384$Oc5.3330@bignews4.bellsouth.net, > Describe what you mean by your ears feeling heavy. One might feel a sense > of pressure when listening to high levels of ultrasound just above the upper > hearing limit, but I wouldn't call it a heavy feeling. > BTW, high levels of ultra sound can damage your hearing, so if you are > feeling any sensation, you're risking damage. In any event, why would you be He probably hangs some anvils onto his ears when he listens to heavy metal music. This music has turned his brain into mush! Bill -- Ferme le Bush >>> > Hi: >>> > [quoted text clipped - 17 lines] >feeling any sensation, you're risking damage. In any event, why would you be >"listening" to ultrasound? Dog whistles aren't ultrasonic - they tend to work in the 5-6kHz range, so I imagine this is just a psychological thing - he is depressed by the noise. d  SignaturePearce Consulting http://www.pearce.uk.com > >> > Hi: > >> > [quoted text clipped - 10 lines] > > > > This is not nonsense > Describe what you mean by your ears feeling heavy. >One might feel a sense > of pressure when listening to high levels of ultrasound just above the upper > hearing limit, but I wouldn't call it a heavy feeling. Yes. It does feel like pressure. > BTW, high levels of ultra sound can damage your hearing, so if you are > feeling any sensation, you're risking damage. In any event, why would you be > "listening" to ultrasound? I am just curious about the sensation. Why does ultrasound cause a feeling of pressure in the ear? >> >> > Hi: >> >> > [quoted text clipped - 25 lines] >I am just curious about the sensation. Why does ultrasound cause a >feeling of pressure in the ear? I have a FEELING it also occurs with lower frequencies assuming having a minimum level. greg Radium: > I am just curious about the sensation. Why does ultrasound cause a > feeling of pressure in the ear? Hm, strange. Whenever I am listening to an ultra sound, I have an ultra feeeeling. -- Mario >> >> > Hi: >> >> > [quoted text clipped - 28 lines] > I am just curious about the sensation. Why does ultrasound cause a > feeling of pressure in the ear? The feeling of pressure only comes at relatively high sound levels, so it you're feeling pressure, you're most likely causing damage to your hearing mechanism. I suspect that the feeling of pressure is nature's way of warning you that you're risking damage, even though you can't hear the sound. > >> >> > Hi: > >> >> > [quoted text clipped - 33 lines] > mechanism. I suspect that the feeling of pressure is nature's way of warning > you that you're risking damage, even though you can't hear the sound. Is the sensation of pressure in the eardrum or the inner ear? Or both? > Is the sensation of pressure in the eardrum or the inner ear? Or both? It's not tht localized. Since the feeling is more physical than it is sensual, one expects that it is in the middle ear or eardrum.. likely the same nerves that an earache would stimulate. Angelo Campanella > > Is the sensation of pressure in the eardrum or the inner ear? Or both? > [quoted text clipped - 3 lines] > it is in the middle ear or eardrum.. likely the same nerves that an > earache would stimulate. It does seem localized somewhere in the ear. If the near-ultra sound is loud enough, the sensation becomes sharply painful [not at all "aching"] -- like when an airplane descends. Otherwise is just feels like a wierd sensation of pressure or penetration. > Angelo Campanella >> > Is the sensation of pressure in the eardrum or the inner ear? Or both? >> [quoted text clipped - 8 lines] > "aching"] -- like when an airplane descends. Otherwise is just feels > like a wierd sensation of pressure or penetration. If you are feeling a sensation of penetration, it's not due to ultrasound and it's not located in your ear. > >> > Is the sensation of pressure in the eardrum or the inner ear? Or both? > >> [quoted text clipped - 8 lines] > > "aching"] -- like when an airplane descends. Otherwise is just feels > > like a wierd sensation of pressure or penetration. > If you are feeling a sensation of penetration, it's not due to ultrasound > and it's not located in your ear. Near-ultrasound sine-waves resemble the barely-audible "scream" of a CRT monitor. These sound are hardly perceived as auditory, rather they are mostly felt in the ear as pressure. If loud enough, this near-ultrasonic sine-wave can actually be sharply painful -- like sticking a needle into the ear. Is this tactile sensation due to stimulation of tactile receptors in the eardrum or inner ear? You might perhaps soon need to consult an ENT. > Near-ultrasound sine-waves resemble the barely-audible "scream" of a > CRT monitor. These sound are hardly perceived as auditory, rather they > are mostly felt in the ear as pressure. If loud enough, this > near-ultrasonic sine-wave can actually be sharply painful -- like > sticking a needle into the ear. Is this tactile sensation due to > stimulation of tactile receptors in the eardrum or inner ear? Do not deal with useless questions. Your outer hair cells are obviously at risk to get permanently damaged. Given you will catch a tinnitus, then try to be its friend, otherwise it will be terrrible. E. > Why do my ears feel heavy when listen to an electronic dog-whistle or > any sine-waves around that frequency? I noticed the same thing many years ago when I first "heard" strong ultrasound. The sense of pitch disappears altogether at frequencies above our high frequency "cutoff", which can range anywhere from 12 kHz for older folks to 20 kHz for some yougsters. I had termed it as an "apparent pressure" at the time. As "Ghost" says, there are no scientific explanations available yet. My first impression was that it was just a partial or secondary sensation that occurs for any strong physical stimulus where there are no primary nerve sensors available. Just as a nearly frostbitten finger can still feel some dull distubance sensation somewhere in one's hand, but not any focused perception, since the primary sensors are numb. Angelo Campanella On 7/7/06 9:04 PM, in article 39Grg.105478$mF2.975@bgtnsc04-news.ops.worldnet.att.net, "Angelo Campanella" <a.campanella@att.net> wrote: >> Why do my ears feel heavy when listen to an electronic dog-whistle or >> any sine-waves around that frequency? [quoted text clipped - 14 lines] > > Angelo Campanella Sound waves do carry momentum in analogy to how electromagnetic waves carry momentum. This momentum density can cause bulk streaming. It does not explain Radium aberrations. Bill -- Ferme le Bush |
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