Problems With Duplex Scaling Of Pearl River Grands?

[Andrew and Rebeca Anderson]

Terry,
On some pianos the rear duplex will come close to matching the 
speaking length, but the more active front duplex is usually a 
fraction of the speaking length...wouldn't you agree?

Andrew Anderson

At 03:40 PM 8/19/2007, you wrote:
>"On any given string, the duplex segment will not match the pitch of 
>the speaking segment of the sting. (It cannot because these two 
>segments are different lengths)."
>
>Since when? I mean, assuming the duplex segment was somewhere close 
>to being "tuned".
>
>Terry Farrell
>
>----- Original Message -----
>
>The duplex scale on the piano refers to the non-speaking portion of 
>treble strings. It can either be muted or left unmuted. If it is 
>left unmuted its strings will vibrate sympathetically as overtones 
>when other notes are played on the piano. On any given string, the 
>duplex segment will not match the pitch of the speaking segment of 
>the sting. (It cannot because these two segments are different lengths).
>If the tuner muted the duplex segment it was probably because one of 
>the strings in this area wasn't seated properly against its bearing 
>point and was buzzing. Another reason for muting this section would 
>be if the piano sounded too resonant. By muting the duplex you can 
>decrese the amount of decay time in the piano's upper register.
>
>Jon Golding
>
>SNIP
>SNIP
>SNIP
>SNIP
>SNIP
>SNIP
>Etc., etc., etc........

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070819/82b9ddfc/attachment.html