Hi Fred, I picked the Baldwin because the three wires were clean sounding--and it is piano that is very stable, and has been so for several years. It also happened to be one that I was working on. I did not take measurements of the outside strings. There were no audible beats when I ghosted at the 2,3,4,5 and 6th partials on the three string unison, nor on the single string when I did the same. Nor could I hear any when I simply played the note. I don't quite trust ghosting to show falseness. At 06:04 PM 3/4/2005 -0700, you wrote: >What about the left and right strings? Do we assume they are in the same >range as the middle string? (Dangerous assumption). > I do find it interesting that the measurements for all three strings >sounding together are within a bit tighter tolerance than the single string. >Another thing that has me curious: why in the world would you pick a 42" >Baldwin for such finicky measurements? And one that hadn't been tuned for >two years? >Regards, >Fred Sturm >University of New Mexico > > >On 3/4/05 1:48 PM, "Don" <pianotuna@yahoo.com> wrote: > >> Hi all, >> >> Here are some limits of resolution for Reyburn Cyber tuner, and some raw >> data for someone to crunch. >> >> All measurements taken at A4 measuring at A5 in pitch correction mode with >> maximum spinner speed. The piano was a 42" Balwin that had not been tuned >> for two years (pitch correction of 1.85 cents at A4) >> >> All three wires sounding. >> >> -0.94 >> -0.97 >> -0.91 >> -0.87 >> -0.79 >> -0.83 >> -0.83 >> -0.76 >> -0.87 >> -0.92 >> >> Middle wire only >> >> -0.62 >> -0.70 >> -0.55 >> -0.41 >> -0.65 >> -0.60 >> -0.61 >> -0.52 >> -0.53 >> -0.58 >> Regards, >> Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. >> Non calor sed umor est qui nobis incommodat >> >> mailto:pianotuna@yahoo.com http://us.geocities.com/drpt1948/ >> >> 3004 Grant Rd. REGINA, SK, S4S 5G7 >> 306-352-3620 or 1-888-29t-uner >> >> _______________________________________________ >> caut list info: https://www.moypiano.com/resources/#archives >> > >_______________________________________________ >caut list info: https://www.moypiano.com/resources/#archives > > >-- >No virus found in this incoming message. >Checked by AVG Anti-Virus. >Version: 7.0.308 / Virus Database: 266.6.0 - Release Date: 3/2/2005 > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@yahoo.com http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-352-3620 or 1-888-29t-uner
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