This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hello, I have heard a definitive loss of sustain and less richness, as the piano may act as if there are only 2 strings that is understandable. But the immediate (or very fast) coupling, is giving a better tone at the beginning, which is also understandable (are not you after that effect when tuning, girls and guys ?). On the Wapin list Michael Wahen have analyzed the samples (spectra, decay, time series) and the graphs seem to confirm what I've heard (I try not to forget that out of tune give the impression of more life and more power while listening). Well it is may be a good idea to use those on those terrific spinet you seem to work with sometime, but it does not make sense on a fine piano at all me think (I like the 3 strings unison too much). My take is also that the remaining string couples with the 2 strings system better,so the whole unison may be easier to obtain. Then, What about stabilization of the tension after the bridge ? I also believe that when unison fail the cause is not in the string but more in drift of tension in non speaking segments, or pin unsettling. A stable unison will remain stable even if you pound on it, the piano goes out of tune with HR changes and temperature, then of course you have different drifts appearing, if the coupling is well done (manually I'd say) , the unison is really long lasting usually I like the John Page idea to try to couple at the bridge pins to fight false beats. I guess it should be possible to produce with strong piano wire little metal clamps that work the same. I like to know if you hear the loss of richness in those simplified samples too. Then have a very good last day of the year, hurry, it is almost finished ! Greetings. Isaac OLEG If one of the coupled strings goes flat by 4 hz, the combined pitch drop would be 2 hz. If the uncoupled string goes flat, it is business as usual for wandering unisons. The coupler will delay the overall degrading of unisons, but not prevent, reduce or delay the failure of the uncoupled unison. So the couplers reduce the chances of an audible unison failure over a given time period by about 50%. Hmmmmmmmmmmmm - yes. The audio and video clips seem to be about as good as that kind of thing can reasonably get over IP (Internet) transmission. Pretty striking differences between "before" and "after". I wonder what they will sound like in the flesh...let alone what other effects they might produce. Kind of hard to imagine them being made out of stainless. What happens if they get grunged up? Ed, I'm sure we're all going to want your feedback on this! As I think of it, such an upright as you suggest would be a really good place to test these things in a "real world" setting...still, it won't fix the jumping pins and rendering problems.... Best. Horace ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/e7/08/c4/d8/attachment.htm ---------------------- multipart/alternative attachment--
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