Can you please give some comments on this? Any other reason may cause this problem? Is there any suggestion on how to fixing the problem? Thanks a lot.
Thank you very much for you quick response/
>>Have the dampers been changed
not yet. the technician mentioned the possibility of changing some dampers to heavier ones. But he is not quite sure. he said he need some opinions from the manufacturer and his friend. It seems he has not got what he wanted yet.
Do you think that is something worth to try?
>>Is the ringing in the high end eg a harmonic ring
It sounds like a harmonic ring. Can you give an idea how to make sure of that?
>>is the piano a grand or upright
>>if upright overstrung or straight strung
>>Over damper or under damper
I think it is under damper. I will check.
Then what I need you to do is push on one of the bottom bass strings with one finger do not play the note you are pushing away form the damper now the
damper should stay in contact with the string as you push it away - if the damper is just seated on the string then you will get ring on the damper should
be pushing on the string when at rest the above test tells you if there is pressure on the string if the damper stays put when you push the string then they need re regulating
the second most common one is off set dampers this is in the by-cords the damper damps one string well but is not damping the other one the test you did first
The hardiest to solve is the third one this some times is a factory problem or if the dampers have been changed What happens is that the damper is working well but it is in the wrong place and is emphasising one of the harmonics and making it ring the other two problem can be solved by re regulating the dampers this one your need to reposition the damper heads or replace with longer dampers
Is the piano new BTW and what make is it
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