---------------------- multipart/alternative attachment I'll second Avery on this. When doing large pitch raises you will hear lots of beats, leaking from adjacent strings and sympathetically resonating from the damped & undamped strings etc. When an individual string beats prominently you may have seating problems at the v-bar, a kink in the wire, or a lack of seating on the bridge. There is a beat suppressor sold for uprights which essentially allows you to "level" strings by pushing them where they bend over the v-bar and a brass drift or a maple hammer shank can be used to seat strings on the bridge around the bridge pins. Utilization of ear plugs can help shut out a lot of exteraneous noise and make picking out the beats you are working with easier. Good luck, Andrew At 06:33 PM 9/25/2004 -0500, you wrote: >Mark, > >If you're raising the piano 100 cents, is it possible you're hearing >extremely >different pitches leaking through the muted string(s)? > >I'd suggest pull everything up to pitch without much regard for clean >unisons, >false beats, etc. At least then you'll know it's a false beat problem. :-) > >Warning: you may need to pull it up more than once if you're not over-pulling >to compensate for the pitch drop, which "might" not be a good idea on an old >upright. At least, the first time. > >Avery > >At 05:28 PM 9/25/04, you wrote: >>Greetings... >> >>New tuner here... >> >>I am currently taking the Randy Potter Piano Tech Course. >>I am in the section of learning temperaments. >>A couple problems have arisen that I am sure you generous folks could >>help me with. >> >>While working in the mid-section of the piano, I encounter this.. >>I have all the necessary outside strings muted and when I go to tune >>certain strings, one string sounds as if it is two strings with very wide >>beats. Although I know it is only one string. This phenomenon only >>happens in the mid-section. >> >>I must therefore get under the piano and mute off that particular string >>between the bridge and the hammer. >>Sometimes this works, other times it doesn't do so well. >>I am wondering, could I have strings that need seating or something else, >>or just plain worn out. Suggestions??? >> >>It is a Hackley upright. ~1945 and I am raising it ~ 100 cents >> >> >>Also, any tips on how to hear beats more accurately??? >> >> >>Thank you in advance >> >>Mark ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/57/a6/f0/5d/attachment.htm ---------------------- multipart/alternative attachment--
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