I have switched to decaf tea after dinner now. Even green teas keep me awake too long. Have you tried Barryโs decaf?ย I think we have some marmalade in the fridge. An experiment for tomorrow night.
What do we hear when we change the direction of a wire?
Douglas Self wrote a devastating article about audio anomalies back in 1988. With all the necessary knowledge and measuring tools, he did not detect any supposedly audible changes in the electrical signal. Self and his colleagues were sure that they had proved the absence of anomalies in audio, but over the past 30 years, audio anomalies have not disappeared anywhere, at the same time the authority of science in the field of audio has increasingly become questioned. It's hard to believe, but science still cannot clearly answer the question of what electricity is and what sound is! (see article by A.J.Essien).
For your information: to make sure that no potentially audible changes in the electrical signal occur when we apply any "audio magic" to our gear, no super equipment is needed. The smallest step-change in amplitude that can be detected by ear is about 0.3dB for a pure tone. In more realistic situations it is 0.5 to 1.0dB'". This is about a 10% change. (Harris J.D.). At medium volume, the voltage amplitude at the output of the amplifier is approximately 10 volts, which means that the smallest audible difference in sound will be noticeable when the output voltage changes to 1 volt. Such an error is impossible not to notice even using a conventional voltmeter, but Self and his colleagues performed much more accurate measurements, including ones made directly on the music signal using Baxandall subtraction technique - they found no error even at this highest level.
As a result, we are faced with an apparently unsolvable problem: those of us who do not hear the sound of wires, relying on the authority of scientists, claim that audio anomalies are BS. However, people who confidently perceive this component of sound are forced to make another, the only possible conclusion in this situation: the electrical and acoustic signals contain some additional signal(s) that are still unknown to science, and which we perceive with a certain sixth sense.
If there are no electrical changes in the signal, then there are no acoustic changes, respectively, hearing does not participate in the perception of anomalies. What other options can there be?
Regards.
For your information: to make sure that no potentially audible changes in the electrical signal occur when we apply any "audio magic" to our gear, no super equipment is needed. The smallest step-change in amplitude that can be detected by ear is about 0.3dB for a pure tone. In more realistic situations it is 0.5 to 1.0dB'". This is about a 10% change. (Harris J.D.). At medium volume, the voltage amplitude at the output of the amplifier is approximately 10 volts, which means that the smallest audible difference in sound will be noticeable when the output voltage changes to 1 volt. Such an error is impossible not to notice even using a conventional voltmeter, but Self and his colleagues performed much more accurate measurements, including ones made directly on the music signal using Baxandall subtraction technique - they found no error even at this highest level.
As a result, we are faced with an apparently unsolvable problem: those of us who do not hear the sound of wires, relying on the authority of scientists, claim that audio anomalies are BS. However, people who confidently perceive this component of sound are forced to make another, the only possible conclusion in this situation: the electrical and acoustic signals contain some additional signal(s) that are still unknown to science, and which we perceive with a certain sixth sense.
If there are no electrical changes in the signal, then there are no acoustic changes, respectively, hearing does not participate in the perception of anomalies. What other options can there be?
Regards.
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- 798 posts total
"When you set it to a temperature other than boiling..." Blasphemy! A kettle that actually boils? Proper tea-kettle is what holds water while fire is burning under it. Temperature is assessed by watching it get warmer. That fine art gets perfected over the years and becomes your second nature. At least it became my second nature. Which may tell a bit about my first nature. Yesterday, I saw a water bottle. One of those people carry around in fear of dying from thirst while walking around any city with two stores on each block. Rechargeable via micro-USB, two modes of operation (normal and adventure), ultraviolet-C light inside. Water bottle, as I said. "While you wait, give the bottle a gentle shake or do your best water dance to spread the purifying UV light evenly." I must be too traditional when I see it as a sign of decline of civilization. Buy The LARQ Bottle PureVis | LARQ (livelarq.com) |
I think we have some marmalade in the fridge. An experiment for tomorrow night.Beware about the quantity: almost nothing.... Dont blindfold yourself here.... ๐๐๐๐๐๐ I must be too traditional when I see it as a sign of decline of civilization.I guess we are around the same age....I see a decline too.....But i myself ascend, thanks to my next book.... |
Couldnโt understand why my Oolong tea at home never tasted as good as the restaurant. Then I discovered it was all about water temperature. Green, white and Oolong teas if they are brewed too hot taste bitter. At the right temperature, they lose the bitterness and you can brew several pots from the same tea leaves, with a slightly different taste for each pot. I used to backpack when I was younger. Now I just find that is work. A UVC water bottle would have been welcome back then. I would use filters and iodine. Not the tastiest stuff. |
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