<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML style="FONT-SIZE: x-small; FONT-FAMILY: MS Sans Serif"><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2604" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY style="WORD-WRAP: break-word; khtml-nbsp-mode: space; = khtml-line-break: after-white-space" bgColor=#ffffff> <DIV><FONT face=Arial>No they don´t and there are good physical = reasons why they don´t. (</FONT><FONT face=Arial>You will find not one tuner at = Steinway (at least in Hamburg) who is allowed to service concerts with an ETD for = example). T</FONT><FONT face=Arial>his has nothing to do with traditionalism or = ignorance to modern technology. </FONT></DIV> <DIV><FONT face=Arial>Most modern ETD´s are doing fast fourier transformation (FFT) for pitch calculation. </FONT></DIV> <DIV><FONT face=Arial>Be sure, the he ear has no FFT transformator... </FONT><FONT face=Arial>There is a big difference in what you get = measured and what you hear.</FONT></DIV> <DIV><FONT face=Arial>In some ETD manuals you find sometimes = statements of "0.1 Hz accuracy"</FONT></DIV> <DIV><FONT face=Arial>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</FONT><FONT face=Arial>. P</FONT><FONT = face=Arial>iano 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. </FONT><FONT face=Arial>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</FONT><FONT face=Arial> </FONT><FONT = face=Arial>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...</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Bernhard Stopper</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Qui habet aures audiendi audiat</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial"> </DIV> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=tune4u@earthlink.net = href="mailto:tune4u@earthlink.net">Alan Barnard</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, January 06, 2006 = 10:26 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Cracking the = unisons</DIV> <DIV><BR></DIV> <DIV> <DIV>Yes they do! And just as soon as I finish hemming these = curtains and eating my spinach quiche I'm going to come right over there and = wag my finger at you. You, you, big meany, you.</DIV> <DIV> </DIV> <DIV> <DIV>Alan Barnard</DIV> <DIV>Salem, Missouri</DIV> <DIV> </DIV></DIV></DIV> <DIV> </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid"> <DIV style="FONT: 10pt Arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=b98tu@t-online.de = href="mailto:b98tu@t-online.de"></A></DIV> <DIV style="FONT: 10pt arial"><B>To: </B><A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A></DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> 01/06/2006 3:45:04 PM = </DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Cracking the = unisons</DIV> <DIV><BR></DIV><FONT size=2> <DIV><FONT face=Arial size=2>...nor do they use = ETD´s</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Bill Ballard wrote:</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV><FONT face=Arial size=2></FONT><FONT face=Arial = size=2></FONT><BR class=khtml-block-placeholder></DIV> <DIV>Real Piano Men don't use mutes. (you know who you = are.......)</DIV> <DIV><BR class=khtml-block-placeholder></DIV><BR = class=khtml-block-placeholder></BLOCKQUOTE></FONT></BLOCKQUOTE></BLOCKQ= UOTE></BODY></HTML>