ETD disparagy

[Mike and Jane Spalding]

Ric,

Will your client be playing the piano with or without "half-muting" the strings?

Seriously, I would guess that your fingernail on the string (at the node?) is altering the pitch of the partial.  I would be inclined to tune the piano using the readings taken without touching the string.

Mike

----- Original Message ----- 
From: Richard Brekne <Richard.Brekne@grieg.uib.no>
To: PTG <pianotech@ptg.org>
Sent: Tuesday, May 07, 2002 10:38 AM
Subject: ETD disparagy


> Hey there all you ETD users..
> 
> I have found a potential problem that I want all your thoughts on. The
> last week or so I have had my trusty laptop out for some experimention
> with Tunelab and it seems like there is quite often a difference between
> reading a notes partial when played normally, and reading that same
> partial when playing with the fingernail half-muting the string to
> accent the partial.  Further it seems like the latter is the more
> accurate of the two.
> 
> Anyone else ever notice this or have an explanation for this. It seems
> most prevalaint from about 1500 hz upover. The problem also seems to be
> lessened a bit when muting off the duplex lengths... tho I still can
> note different readings when half-muting and not.
> 
> In all cases so far usual play results in a lower frequency then
> half-muting the same partial.
> 
> Thoughts ?
> 
> --
> Richard Brekne
> RPT, N.P.T.F.
> Bergen, Norway
> mailto:rbrekne@broadpark.no
> http://home.broadpark.no/~rbrekne/ricmain.html
> 
> 
>