Chris53
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Post by Chris53 on May 10, 2012 15:03:23 GMT
Chris Are you 100% certain that it isn't temperature related ? Alex Alex It can sound very good without the problem at 3am from cold. No doubt the sound might improve more after things get warmer but the basic shrillness isn't there at that time of day. Chris
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Post by eightdigitword on May 11, 2012 7:40:39 GMT
Chris Are you 100% certain that it isn't temperature related ? Alex Alex It can sound very good without the problem at 3am from cold. No doubt the sound might improve more after things get warmer but the basic shrillness isn't there at that time of day. Chris Chris, Try leaving it on a couple of hours before at night, say midnight. Then give it a listen at 0300 and see if anything changes. Kevin.
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Chris53
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Post by Chris53 on May 11, 2012 14:59:52 GMT
Alex It can sound very good without the problem at 3am from cold. No doubt the sound might improve more after things get warmer but the basic shrillness isn't there at that time of day. Chris Chris, Try leaving it on a couple of hours before at night, say midnight. Then give it a listen at 0300 and see if anything changes. Kevin. Kevin I've already tried it all. Even last night to remind myself I switched it all on at about 4pm and listened on odd occasions through the evening but it still wasn't until 3am that the problem was virtually gone. Whether it has warmed up for hours or whether I switch it on momentarily at 10pm, 11pm 12pm or 3am, the problem is there until about 3am.
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Deleted
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Post by Deleted on May 12, 2012 7:57:52 GMT
Chris,
Do you experience the same when using portable equipment at these hours or is it just the home system ?
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Chris53
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Post by Chris53 on May 12, 2012 16:40:20 GMT
Chris, Do you experience the same when using portable equipment at these hours or is it just the home system ? Hmm, Haven't tried that. The portable equipment isn't as good as the main system but it will be interesting to find out if the sound of the portable gets better at 3am too. I'll give that a go.
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Chris53
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Post by Chris53 on May 13, 2012 10:31:41 GMT
Chris, Do you experience the same when using portable equipment at these hours or is it just the home system ? Hmm, Haven't tried that. The portable equipment isn't as good as the main system but it will be interesting to find out if the sound of the portable gets better at 3am too. I'll give that a go. A very slight hard edge to the sound that was apparent during the day was less at the holy hour of 3am on the portable equipment. I even tried the portable out in the garden during the day and the edge was there. It is much more apparent on the mains system which has better resolution anyway. Each time I listened through AKG K-601's. I am going to try this again tonight as the difference on the portable equipment is less marked than on the mains gear and I want to be very sure I am hearing what I am hearing. I am absolutely sure I hear it on the mains gear though.
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Chris53
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Post by Chris53 on May 14, 2012 6:27:07 GMT
A second night checking out the portable gear and the "edge" is there during the day and gone at 3am. So this would appear to be something radiated and not on the mains by the look of it. Now what?
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Deleted
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Post by Deleted on May 14, 2012 6:36:19 GMT
This may sound completely silly but it is not. Wrap the portable stuff including all the wiring right up to the headphone in tinfoil (aluminum foil) and connect that via a wire or something to the common of the circuit (headphone plug shield for instance). IF it is radiated there will be a considerable attenuation. You would have to be really close to a beam transmitter (small discs) directly in your path at quite a close distance for portable equipment to be influenced and would most likely hear strange 'sounds' as well. You don't have to put on the tinfoil hats like those depicted in RG from time to time... There is also a logical physical explanation for what you are perceiving but that's only what remains after the screening test (or trying the same portable gear at another location). We all have a small muscle in our ear that controls the tension of our membrane. During the day it is tentioned and in the evening it relaxes (and at the time we are supposed to be asleep even more). This creates a difference in sensitivity (a lot of info is out there) and also freq. response and we hear 'better' in the wee hours. It is not inconceivable that your ears give the slight edge when that muscle is tentioned (cause harmonic distortion of the soundwaves reaching your ear)and in a total relaxed and sleepy state finally let's your membrane function as it should. First the screening and if possible the test at another location to rule out a beam transmitter pointed at your house. Why that transmitter (or GSM mast) would go 'off' or in low power mode at the given time would be hard to explain. a beam transmitter needs 'free space' to see the other end. The guys installing those (in high masts) would be alerted if they went through a house though (they would loose some serious fieldstrength)
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Chris53
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Post by Chris53 on May 16, 2012 18:30:48 GMT
This may sound completely silly but it is not. Wrap the portable stuff including all the wiring right up to the headphone in tinfoil (aluminum foil) and connect that via a wire or something to the common of the circuit (headphone plug shield for instance). IF it is radiated there will be a considerable attenuation. You would have to be really close to a beam transmitter (small discs) directly in your path at quite a close distance for portable equipment to be influenced and would most likely hear strange 'sounds' as well. You don't have to put on the tinfoil hats like those depicted in RG from time to time... There is also a logical physical explanation for what you are perceiving but that's only what remains after the screening test (or trying the same portable gear at another location). We all have a small muscle in our ear that controls the tension of our membrane. During the day it is tentioned and in the evening it relaxes (and at the time we are supposed to be asleep even more). This creates a difference in sensitivity (a lot of info is out there) and also freq. response and we hear 'better' in the wee hours. It is not inconceivable that your ears give the slight edge when that muscle is tentioned (cause harmonic distortion of the soundwaves reaching your ear)and in a total relaxed and sleepy state finally let's your membrane function as it should. First the screening and if possible the test at another location to rule out a beam transmitter pointed at your house. Why that transmitter (or GSM mast) would go 'off' or in low power mode at the given time would be hard to explain. a beam transmitter needs 'free space' to see the other end. The guys installing those (in high masts) would be alerted if they went through a house though (they would loose some serious fieldstrength) Frans Thanks for all this. Quite a bit to think about. I'll try the experiments but I have a feeling that your muscle in the ear theory might just be it. I did try the portable in the garden about 100 feet away from the house during the day and unless there is a major issue with a GSM mast in my area my guess is that it's my ears I'll report back after the experiments.
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Post by eightdigitword on May 16, 2012 20:54:07 GMT
This may sound completely silly but it is not. Wrap the portable stuff including all the wiring right up to the headphone in tinfoil (aluminum foil) and connect that via a wire or something to the common of the circuit (headphone plug shield for instance). IF it is radiated there will be a considerable attenuation. You would have to be really close to a beam transmitter (small discs) directly in your path at quite a close distance for portable equipment to be influenced and would most likely hear strange 'sounds' as well. You don't have to put on the tinfoil hats like those depicted in RG from time to time... There is also a logical physical explanation for what you are perceiving but that's only what remains after the screening test (or trying the same portable gear at another location). We all have a small muscle in our ear that controls the tension of our membrane. During the day it is tentioned and in the evening it relaxes (and at the time we are supposed to be asleep even more). This creates a difference in sensitivity (a lot of info is out there) and also freq. response and we hear 'better' in the wee hours. It is not inconceivable that your ears give the slight edge when that muscle is tentioned (cause harmonic distortion of the soundwaves reaching your ear)and in a total relaxed and sleepy state finally let's your membrane function as it should. First the screening and if possible the test at another location to rule out a beam transmitter pointed at your house. Why that transmitter (or GSM mast) would go 'off' or in low power mode at the given time would be hard to explain. a beam transmitter needs 'free space' to see the other end. The guys installing those (in high masts) would be alerted if they went through a house though (they would loose some serious fieldstrength) Frans Thanks for all this. Quite a bit to think about. I'll try the experiments but I have a feeling that your muscle in the ear theory might just be it. I did try the portable in the garden about 100 feet away from the house during the day and unless there is a major issue with a GSM mast in my area my guess is that it's my ears I'll report back after the experiments. Chris, My initial assessment from your first post was that in all likely hood your ears were to blame. I refrained from mentioning this as some may take this as an insult. Your hearing alters throughout the day and will be most different from waking to ´before bed´at whatever time that may be. I have observed this myself many times and because of this leave any modifications till the next day for further listening to confirm subtle differences. I know of one guy who stubbornly altered huge amounts of hifi to determine the right channel bias only to find out 6 months later that he had a lump of toilet paper lodged inside his left ear! If the difference to you is balanced don't get your ears syringed at your GP as your ears produce more wax after this treatment. do consider it if the difference is unbalanced. Also, never put anything in your ears especially cotton buds. Hope you get this issue nailed and can go back to listening without turmoil!
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Deleted
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Post by Deleted on May 16, 2012 21:12:25 GMT
I wasn't game to mention this before, but elevated blood pressure can cause similar. I know that only too well. Chris, have you had your BP checked recently ? Kind Regards Alex P.S. A suggestion that you are likely to enjoy. If you like unsalted cashews, or even salted cashews with some of the salt removed, get stuck into them, and other than just a tasty snack, the magnesium in them helps to regulate BP. See if that makes any difference.My GP can verify that it does with me.
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mrarroyo
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Post by mrarroyo on May 18, 2012 10:33:16 GMT
GP as in green party?
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Post by eightdigitword on Mar 31, 2014 9:32:03 GMT
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