Hi André, If the difference is 5 to 10% it should be large enough to be easily measured with a real time analyser. There are shareware versions of such programs. You would have to manufacture a "key playing device" to remove the "human" from the equation, or use something like a Yamaha disclavier. Have you noted the same improvement on upright pianos? Or is this limited to just grand pianos? At 12:12 PM 29/01/2005 +0100, you wrote: >It is there, but >I would say that in most pianos it is an increase in loudness of maybe 5 to >10 %. >André Oorebeek Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna@accesscomm.ca http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-352-3620 or 1-888-29t-uner
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