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#2166367 - 10/14/13 10:52 PM How loud should a key release be?
jc201306 Offline
Full Member

Registered: 06/21/13
Posts: 42
On my grand, if I press the key down slowly all the way to the bottom without making any sound, and the release the key quickly, I can hear the sound of action mechanism working. This happens to every key of my piano.

My question is, is this normal? Should I hear the sound of the action at all? If so, how loud should it be?

Thanks in advance.

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#2166372 - 10/14/13 11:12 PM Re: How loud should a key release be? [Re: jc201306]
Bosendorff Offline
Full Member

Registered: 08/11/12
Posts: 441
Yes it's totally normal that keys make a little thump sound when you release them quickly. It's the hammers falling back in their initial position. As long as all keys make the same soft noise on release, it's all fine.

It could be abnormal if one or a few keys do a different type of sound on release. For example, a soft "metal" noise heard with the release thump could indicate that one of the sostenuto brackets is a bit out of position, etc. But it's very easy to fix, just a little adjustment.

#2166378 - 10/14/13 11:28 PM Re: How loud should a key release be? [Re: jc201306]
Ed McMorrow, RPT Offline
3000 Post Club Member

Registered: 12/09/12
Posts: 3205
Loc: Seattle, WA USA
Key/hammer return noise is always there at some level. If the balance rail holes are loose upon the pin clicking type noises can sometimes be heard.
The one grand action noise that I strongly dislike is the thump most Yamahas have when the jack returns to rest. Many Steinways from the 1960 to 1980 era had hard knuckles that "thock" when the hammer returns to rest.
In a seemingly infinite universe-infinite human creativity is-seemingly possible.
Contact: Ed@LightHammerpiano.com

#2166534 - 10/15/13 07:48 AM Re: How loud should a key release be? [Re: jc201306]
Rickster Offline

Registered: 03/25/06
Posts: 9317
Loc: Georgia, USA
If the action hasn't been regulated in a while, the back stop rail could be too high (too close to the shanks) and need adjusting.

It (the noise) only bothers you if you pay attention to it; just ignor it and listen to the music. smile

Piano enthusiast and amateur musician: "Treat others the way you would like to be treated". Yamaha C7. YouTube Channel

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#2167012 - 10/16/13 06:38 AM Re: How loud should a key release be? [Re: jc201306]
Rich Galassini Offline
9000 Post Club Member

Registered: 05/28/01
Posts: 9880
Loc: Philadelphia/South Jersey
This has been called "actuation noise" and is probably the normal sound of the mechanical parts doing their job. As others have stated, this "noise" may be lessened with regulation or by needling or replacing hard knuckles, but some sound will always be there.

Rick was also spot on. When you are playing music it is rarely noticeable.
Rich Galassini
Cunningham Piano Co.
Phila, Pa.
Dir. Line (215) 991-0834


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