----- Original Message ----- From: "Fred Sturm" <fssturm at unm.edu> To: "College and University Technicians" <caut at ptg.org> Sent: Thursday, August 23, 2007 7:36 AM Subject: Re: [CAUT] SAT numbers > ... the fact that only three notes are sampled really isn't a major > problem, as long as the data from those three notes is accurate. And > therein lie some problems: unfortunately, the output of partials from a > string through a piano has anomalies. <snip> > To get around this problem, RCT does full partial ladders of several A's. > So problem partials tend to be averaged out. So does TuneLab, and I sweat over each measurement, averaging multiple readings on A1 thru A6 (you choose which notes to read). I'm amazed how good a job Dr. Sanderson does with just two partials on three notes. --Cy--
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