Dampers do make noise when they hit the strings, that is part of being a piano. The damper travel should be set to factory specs if you want the piano to have proper damper timing and correct proportional pedaling. However if the damper drop noise is really annoying due to your listening environment or other considerations, you can limit the travel and therefore the drop distance. I am not familiar with exactly how this is done on your DKV but it is possible. On old pneumatic players I would make the travel very small but those pianos did not have proportional pedaling. To have very little damper travel you do have to regulate the dampers extremely well so they will all release even with a small travel.
Also if the piano is old and or has been played a lot it is possible that the dampers are hard and need to be replaced. You do have some choices in damper felt. Softer is less noisy but dampens less quickly. You also have a choice of the shape of damper felt for the trichords. A wedge type might be quieter than a flat one or maybe it is the reverse.
I think i remember you saying that the noise was most objectionable when playing in "silent" mode. I would think there would be some way (might need to get a little creative) to defeat the dampers when not playing acoustically.
Best regards, Spencer Chase
67550-Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
21220 92nd Place W., Edmonds, WA 98020
Spencer@...
Spencer@poodlex.com
Spencer@...
http://www.spencerserolls.com
http://www.poodlex.com
(425) 791-0309
(707) 223-8212
67550-Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
21220 92nd Place W., Edmonds, WA 98020
Spencer@...
Spencer@poodlex.com
Spencer@...
http://www.spencerserolls.com
http://www.poodlex.com
(425) 791-0309
(707) 223-8212
------ Original Message ------
From: "Dmitry dmitryos@... [disklavier]" <disklavier@yahoogroups.com>
Sent: 10/4/2016 5:40:49 AM
Subject: Re: [disklavier] Pedal drop sound
Hi Peter,Thank you so much for the suggestion! Today I disassembled the piano and got access to all the its parts.I have to say I spent some time to press the pedal and try to find the part(s) which produces the sound. I would say I'm pretty confident that the sound comes from the dampers when they touch the strings all together. I'm a bit confused what I can do in this case now. Will try to look at all of this tomorrow but really don't know what I can find more.If you have any idea about this it would help me a lot.Thank you,DmitryOn 3 October 2016 at 17:30, 'Peter Phillips' eleced@... [disklavier] <disklavier@yahoogroups.com> wrote:
Pedal drop soundsDmitry, I have a Mk 4 C5 Pro, and the pedal noise was driving me mad. I complained to Yamaha, and a piano tech visited and confirmed the noise I was hearing was incorrect, so don't let them tell you the noise is normal. The problem was solved very simply. If you take the piano action out, you will see the push rod from the pedal trap work connecting to the dampers. There is a felt washer between the two surfaces, and this washer has flattened to the point where it was no longer effective. We cut another washer from thin felt, and placed it on top of the other washer. Problem completely solved.Apparently the sound, though minor in itself, is amplified by the acoustics inside the piano. I had previously tried slowing the dampers by using Spencer Chase's proportional pedal software, but nothing was going to solve this problem other than a felt washer. Good luck with it, and you will be amazed at how silent the pedal can actually be.Peter Phillips (Sydney)