This is a multi-part message in MIME format. ---------------------- multipart/related attachment ------=_NextPart_001_0017_01C61321.5D3D3A20 Andre is the the european distributor of the verituner isn=C2=B4t he ? = ;) friendly, Bernhard ----- Original Message -----=20 From: antares=20 To: Pianotech=20 Sent: Saturday, January 07, 2006 12:16 AM Subject: something about ETD's from an insider On 6-jan-2006, at 23:43, b98tu@t-online.de wrote: No they don?t and there are good physical reasons why they don?t. = (You will find not one?tuner at Steinway (at least in Hamburg) who is = allowed to service concerts with an ETD for example). This has nothing = to do with traditionalism or ignorance to modern technology. Most?modern ETD?s are doing fast fourier transformation (FFT)?for = pitch calculation. Be sure, the he ear has no FFT transformator... There is a big = 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 = than?2 or 3 seconds to catch enough samples at the current possible = samplerates. Piano sounds are a really nonlinear matter that can?float = in?pitch?up to?some?Hz over?a second, when strucked firm. By = transforming a signal from the time domain into the frequency domain = with the desired accuracy (what most?ETD?s do), you loose the = information when a singal passes exactly what frequency at what time. = Tuning with an ETD makes it necessary to tune at low volume levels = (Pitch float is less at low volume levels). A good?aural tuner tune with = a firm struck,?to catch also the transient phase of the sound at higher = volumes. Low volume tuning is like not voicing the left pedal, it = leaves?the transient phase untuned. But sometimes it may happen, that = the pianist also use volumes above mp... ? Bernhard Stopper ? ? Qui habet aures audiendi audiat = -------------------------------------------------------------------------= -------------------------------------------------------------------------= ----- Never the less.......... After having tuned all the piano's in the world, so to speak, I am = still mightily happy with my Verituner. I have tuned a great number of piano's with the Verituner since about = 2000, and you know what? about every tuning I made with the aid of this invention of Dave = Carpenter turned out to be? the very best tuning I have ever made in my = whole life, with the acceptance of one tuning which was my final 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=E9=A0=8Forebeek R. Vinkeleskade 1-3hg 1071 SN Amsterdam? The Netherlands tel/fax : 0031-20-6237357 gsm ? :? 0031-645-492389 www.concertpianoservice.nl and the stories I hear! ------=_NextPart_001_0017_01C61321.5D3D3A20 An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/fe/f4/8a/d3/attachment.htm ------=_NextPart_001_0017_01C61321.5D3D3A20-- ---------------------- multipart/related attachment A non-text attachment was scrubbed... Name: not available Type: image/jpeg Size: 17820 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/3c/fa/ca/2b/attachment.jpe ---------------------- multipart/related attachment--
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