I hear the wind cry Mary....give it a rest....
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
No. You hear the same thing because the differences in direction are too small. AC has nothing to do with it. |
Reality is never what we assumed it is.... Science exist and demonstrate it for us...With new concepts but also new methods of investigation... «Are wind farms harmful to humans? Some believe so, others refute this; this controversial topic makes emotions run high. To give the debate more objectivity, an international team of experts dealt with the fundamentals of hearing in the lower limit range of the audible frequency range (i.e. infrasound), but also in the upper limit range (i.e. ultrasound). The project, which is part of the European Metrology Research Programme (EMRP), was coordinated by the Physikalisch-Technische Bundesanstalt (PTB). At PTB, not only acoustics experts, but also experts from the fields of biomagnetism (MEG) and functional magnetic resonance imaging (fMRI) were involved in the research activities. They have found out that humans can hear sounds lower than had previously been assumed. And the mechanisms of sound perception are much more complex than previously thought.» https://www.sciencedaily.com/releases/2015/07/150710123506.htm This is not the vulgarisation above but the real paper : https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0174420 All that prove NOTHING for the audible detection of wire direction for sure... But knowing that human can hear 8 hertz sound and above in the higher frequencies and knowing that the neural infrastructure of hearing implicate some area of the brain normally not associated with hearing says a lot.... Then apriori ridiculizing claim or absolute negation about the real limits of hearing in humans is serious... We dont know.... We dont know what hearing IS.... We sont know what a sound IS... We use water in very sophisticated technology and we dont know what water is.... Saying water is H2O is not a complete explanation and certainly not an understanding... We use light in laser technology but we dont know what light is... We study the prime numbes and use them with very complicate and deep mathematical tools but we absolutely dont know what prime numbers are.... Then we must relax and think.... And making stupid joke while pretending we know something is child play... The subject of this thread interest me a lot but i dont have any opinion for or against wire direction... It is an experiment.... at least in thinking....It is interesting.... It is related to deep questions... Idiots beware.... |
More seriously now and perhaps nearer to our debate this is extraordinary: «We’ve all heard of Heisenberg’s Uncertainty Principle. That puts a fundamental limit on the accuracy with which position and momentum of a particle can be simultaneously known. The more precision for one, the less for the other. There’s a similar idea in acoustics, called the Fourier Uncertainty Principle. Fourier Analysis, a commonly used mathematical method of deconstructing complex waves into their components, is the basis of this uncertainty principle. Unlike Heisenberg’s, it represents not an intrinsic property of the source, but a limit on the capabilities of linear algorithms to analyze it. https://evolutionnews.org/2013/02/human_hearing_o/ This is the vulgarisation.... The real article is this: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.110.044301 All this is spectacular example of limitations alleged in the past and overcome.... We dont know what sound IS... We dont understand human hearing .... But science go on enlightening us about deepest and deepest imprevisible discoveries... |
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