Except when the noise comes from poorly shaped terminations. David Love, www.davidlovepianos.com -----Original Message----- From: Ron Nossaman <rnossaman at cox.net> Date: Tue, 01 Jun 2010 22:40:39 To: <pianotech at ptg.org> Subject: Re: [pianotech] Hammers or duplex? Joe Wiencek wrote: > This subject was heatedly debated recently, With one individual providing all the heat, yes. >that is, which is the source > of extraneous noise, poorly mated hammers, or issues relating to duplex > length? The long front duplex lengths are the problem. Poorly mated hammers/strings will most certainly produce phasing noises elsewhere, but the short duplexes won't make noise however badly mated the hammers/strings. Nor will the long front duplex lengths necessarily become quiet however perfectly the hammer/string mating is accomplished. >I just want to throw out another question, because I'm not a > scientist. What about upright pianos? Even with poorly shaped hammers, > I don't encounter too much noise in uprights? Any one with more > empiricism care to comment? Uprights don't have long front duplex segments. That's it. Ron N
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