In Reply to: RE: Ignore the doubters! posted by Joe Roberts on September 20, 2015 at 12:31:34:
Joe, you sound like someone with whom it is possible to have a rational discussion. What would your response be to the following?It is clear that at some level, if one is not going to be a gullible simpleton who believes everything he is told, one must make some sort of a judgement call about whether a reported effect even deserves any serious consideration or not. For example, if I report that by burying a teapot at the bottom of my garden I get a much improved soundstage in my living-room stereo system you would not (I hope!) give any credence whatsoever to the claim. You would be able to make an assessment, based on known and well-established understanding of how the physical world works, that the claim was simply ludicrous; it does not need to be tested before being dismissed.
So, what is one to make of somebody's claim that reversing the direction of a piece of signal wire changes the sound? There are (at least) two possible explanations for the reported effect. One of these is that there really is a genuinely verifiable effect on the sound. (And to me, the only way it could be genuinely verifiable is if the person reporting it could reliably demonstrate the ability to hear the difference in rigorous double-blind tests.) Another possible explanation is that the person has imagined the effect, with their expectation of a difference leading them to "hear" it when they make experiments reversing the wire.
To me, the possibility that the direction of the wire actually makes a verifiable difference is about as likely (that is to say, very very unlikely!) as that burying the teapot in the garden would make a difference. As gargoyle emphasised, one is talking about alternating currents here. Why on earth should there be a difference based on the direction the wire is connected? On the other hand, it is very well documented in countless experiments that people may "see" things that are not real, or fail to see things that are real. There are huge numbers of examples of optical illusions. I'm not so familiar with experiments concerning aural illusions, but it does seems to be the case that the brain is easily fooled into perceiving what it expects to perceive.Given this situation, surely the overwhelmingly more plausible explanation for the alleged effect of reversing the direction of the wire is that it is entirely in the imagination of the listener? Why should it be given any more credence than the claim that burying a teapot will affect the sound?
Of course, there is in principle another conceivable explanation for a genuine effect, as has already been mentioned, namely, that because of some badly soldered joint, for example, there is some sort of crude diode rectification involved. That could be much better settled by making measurements with test equipment, not by delving into obscure corners of human psychology. And in any case, it would not be providing any sort of general principle about the direction of wires mattering. Rather, it would just be a lesson that shoddy soldered joints should be avoided.
Chris
Edits: 09/20/15 09/21/15
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Follow Ups
- RE: Ignore the doubters! - cpotl 16:53:38 09/20/15 (39)
- Drawing the line - Joe Roberts 21:56:43 09/20/15 (38)
- MapleShade? - gusser 14:30:47 09/21/15 (27)
- RE: MapleShade? - Joe Roberts 14:35:48 09/21/15 (26)
- RE: MapleShade? - gusser 14:41:37 09/21/15 (25)
- Im going to report this to the CPSC! - gusser 16:31:32 09/21/15 (24)
- RE: Im going to report this to the CPSC! - danlaudionut 19:57:39 09/21/15 (23)
- You are free to: - gusser 22:16:49 09/21/15 (12)
- RE: You are free to: - danlaudionut 22:37:18 09/21/15 (11)
- er Dan?... it IS the hubris that.allows one to take that position. Freedom demands responsibility-nT - Cleantimestream 08:34:01 10/01/15 (0)
- RE: You are free to: - gusser 22:45:55 09/21/15 (9)
- RE: You are free to: - danlaudionut 23:01:22 09/21/15 (8)
- I don't see any porcelain around those prongs! - gusser 23:05:31 09/21/15 (7)
- RE: I don't see any porcelain around those prongs! - aknaydenov 23:23:35 09/21/15 (6)
- This is not about your amp! - gusser 23:28:30 09/21/15 (5)
- RE: This is not about your amp! - danlaudionut 04:11:30 09/22/15 (4)
- RE: This is not about your amp! - Garg0yle 06:21:57 09/22/15 (0)
- RE: This is not about your amp! - Joe Roberts 05:52:00 09/22/15 (2)
- These are well made a crazy affordable - Kloss 06:11:49 09/24/15 (1)
- Yup! That's all you need (nt) - gusser 13:04:00 09/24/15 (0)
- RE: Im going to report this to the CPSC! - Garg0yle 20:29:47 09/21/15 (9)
- RE: Im going to report this to the CPSC! - danlaudionut 21:02:58 09/21/15 (8)
- RE: Im going to report this to the CPSC! - gusser 22:35:56 09/21/15 (7)
- RE: Im going to report this to the CPSC! - danlaudionut 22:44:35 09/21/15 (6)
- So I'll ask again: - gusser 22:51:45 09/21/15 (5)
- RE: So I'll ask again: - danlaudionut 04:23:52 09/22/15 (4)
- RE: Sounds a lot like socialism Dan - deafbykhorns 10:11:50 10/01/15 (0)
- RE: UL Police - deafbykhorns 10:09:03 10/01/15 (0)
- RE: So I'll ask again: - Geary Lyons 16:57:34 09/30/15 (0)
- RE: So I'll ask again: - gusser 11:09:33 09/22/15 (0)
- RE: Drawing the line - dave slagle 07:53:54 09/21/15 (9)
- RE: Drawing the line - cpotl 09:04:08 09/21/15 (4)
- RE: Drawing the line - dave slagle 09:26:44 09/21/15 (3)
- RE: Drawing the line - cpotl 09:41:29 09/21/15 (2)
- RE: Drawing the line - dave slagle 09:52:16 09/21/15 (1)
- RE: Drawing the line - cpotl 11:20:43 09/21/15 (0)
- RE: Drawing the line - megasat16 09:00:18 09/21/15 (2)
- RE: Drawing the line - aknaydenov 23:21:30 09/21/15 (1)
- RE: Drawing the line - FlyCast 05:13:59 09/22/15 (0)
- RE: Drawing the line - Joe Roberts 08:49:45 09/21/15 (0)