Coupling / Decoupling
- zebbo
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Re: Coupling / Decoupling
So you don't think that vibrations powerful enough to vibrate a piece of 4mm thick glass, (and that was just from human spoken voice), would be enough to set up vibrations in a TT shelf/plinth/platter/lid ?
Audio Grail "Sable" Garrard 401 with Cumbrian Green Slate plinth / Audiomods 6 / Benz Micro Gullwing SLR, Phono 2, NVA INT400sa. (Oh and a Copland CDA823 CD Player, for when I fancy a bit of the devil's spawn!)
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Re: Coupling / Decoupling
who said a human voice can vibrate a window pain and at what force ?
I find that very difficult to believe .
the link says of a picture frame and that is light wave interference not mechanical , though another link says a window .
I am not convinced a laser microphone is evidence that sound waves will effect cantilevers but I will look into it further .
I find that very difficult to believe .
the link says of a picture frame and that is light wave interference not mechanical , though another link says a window .
I am not convinced a laser microphone is evidence that sound waves will effect cantilevers but I will look into it further .
- zebbo
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Re: Coupling / Decoupling
It is about reading the vibrations of people talking off a window with a laser "eavesdropping device" and to my mind, there is only one way for that vibration to get from a mouth to the window and that's through the air.
Audio Grail "Sable" Garrard 401 with Cumbrian Green Slate plinth / Audiomods 6 / Benz Micro Gullwing SLR, Phono 2, NVA INT400sa. (Oh and a Copland CDA823 CD Player, for when I fancy a bit of the devil's spawn!)
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Re: Coupling / Decoupling
laser microphones work through light diffraction caused by vibration of a window . These vibrations need be only infinitesimally small to diffract light and thus for the laser to record movement and turn that movement in to sound . They prove that sound is waves in air .
I think it is illegitimate to extrapolate the fact of laser microphones work on windows to conclude that the vibration is sufficient to effect a mechanical transducer . I can hear the music so air must move , it doesn't mean it is sufficient for it to effect a cantilever .
I think it is illegitimate to extrapolate the fact of laser microphones work on windows to conclude that the vibration is sufficient to effect a mechanical transducer . I can hear the music so air must move , it doesn't mean it is sufficient for it to effect a cantilever .
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- zebbo
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Re: Coupling / Decoupling
Weirdos ? Is that you and me then Dan? Or all of us?
Audio Grail "Sable" Garrard 401 with Cumbrian Green Slate plinth / Audiomods 6 / Benz Micro Gullwing SLR, Phono 2, NVA INT400sa. (Oh and a Copland CDA823 CD Player, for when I fancy a bit of the devil's spawn!)