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<DIV><FONT size=2>The ETD or ETSD (electronic tuning support device as =
I like to
think of it) makes its scale calculation based on a theoretical =
inharmonicity
curve. Variations in the curve on any given piano despite the FAC =
readings
will create some areas of disparity which can be corrected on the fly, =
so to
speak, by either listening or direct measurement. I can't say that =
I go
through all the checks that I would on an aural tuning, but I will at =
least
check octaves thirds and tenths progressions as I go, and in the bass I =
will
check be direct measure (play the upper note look at the lights, play =
the lower
note and adjust the speed accordingly). I can reach those =
intervals with
one hand and it doesn't take that much time. I have to say that it =
is rare
that I don't make some adjustments.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>David Love</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">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=cedel@supernet.com href="mailto:cedel@supernet.com">Clyde =
Hollinger</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> January 12, 2002 6:47 =
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> ETDs and aural =
checks</DIV>
<DIV><BR></DIV>Friends,
<P>How many of you ETD users do aural checks? Isn't that a waste =
of
time, if you can trust the ETD? Or can't they be trusted? =
(I'm not
giving my opinion -- yet, anyway.)
<P>Clyde
<P>David Love wrote:
<BLOCKQUOTE TYPE="CITE"><FONT size=-1>To set each string in 5 =
seconds might
be reasonable on some pianos. But I don't see how that could =
possibly
take into account setting a temperament (for aural tuners), taking
measurements and calculating stretch (for ETD users), or going =
through any
types of aural checks (which should happen for
both).</FONT></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>