---------------------- multipart/alternative attachment On 6-jan-2006, at 23:43, b98tu@t-online.de wrote: > No they don=C2=B4t and there are good physical reasons why they = don=C2=B4t. =20 > (You will find not one tuner at Steinway (at least in Hamburg) who =20 > is allowed to service concerts with an ETD for example). This has =20 > nothing to do with traditionalism or ignorance to modern technology. > Most modern ETD=C2=B4s are doing fast fourier transformation (FFT) for = =20 > pitch calculation. > Be sure, the he ear has no FFT transformator... There is a big =20 > difference in what you get measured and what you hear. > In some ETD manuals you find sometimes statements of "0.1 Hz accuracy" > This is true for a signal that would not float in pitch over more =20 > than 2 or 3 seconds to catch enough samples at the current possible =20= > samplerates. Piano sounds are a really nonlinear matter that can =20 > float in pitch up to some Hz over a second, when strucked firm. By =20 > transforming a signal from the time domain into the frequency =20 > domain with the desired accuracy (what most ETD=C2=B4s do), you loose =20= > the information when a singal passes exactly what frequency at what =20= > time. Tuning with an ETD makes it necessary to tune at low volume =20 > levels (Pitch float is less at low volume levels). A good aural =20 > tuner tune with a firm struck, to catch also the transient phase of =20= > the sound at higher volumes. Low volume tuning is like not voicing =20 > the left pedal, it leaves the transient phase untuned. But =20 > sometimes it may happen, that the pianist also use volumes above mp... > > Bernhard Stopper > > > Qui habet aures audiendi audiat ------------------------------------------------------------------------=20= ------------------------------------------------------------------------=20= ------- Never the less.......... After having tuned all the piano's in the world, so to speak, I am =20 still mightily happy with my Verituner. I have tuned a great number of piano's with the Verituner since about =20= 2000, and you know what? about every tuning I made with the aid of this invention of Dave =20 Carpenter turned out to be the very best tuning I have ever made in =20 my whole life, with the acceptance of one tuning which was my final =20 exam tuning at Yamaha in Hamamatsu. That tuning was just as good as the average Verituner tuning. I t was a shocking discovery, let me tell you.... friendly greetings from Andr=C3=A9 Oorebeek R. Vinkeleskade 1-3hg 1071 SN Amsterdam The Netherlands tel/fax : 0031-20-6237357 gsm : 0031-645-492389 www.concertpianoservice.nl =EF=BF=BC and the stories I hear! ---------------------- multipart/alternative attachment --Apple-Mail-18--631621263 An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/6e/2d/e2/13/attachment.htm --Apple-Mail-18--631621263 A non-text attachment was scrubbed... Name: EAR.jpg Type: image/jpeg Size: 17820 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/c7/59/e0/da/EAR.jpg --Apple-Mail-18--631621263-- ---------------------- multipart/alternative attachment--
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