LoveNanRen

2 hours ago, FredGarvin said:

Hi LoveNanRen,

The sound from the key thumps was transmitted through the structure of the building.  Same as the vibration resulting from deep bass (or someone walking heavily on their heels), these vibrations were easily transmitted from my former apartment to the above and below ones.  

Again, this is no longer an issue as I have since moved to a much better isolated apartment and that I now occupy the top floor.  Nonetheless, while I hardly ever hear anything from the downstairs's neighbor apartment, I do hear the vibration noise from the heavy front door if it slammed or when his featherweight teen son walks like an elephant.  Yes... vibration moves in mysterious ways!   

Hope this helped to quench your curiosity.

 

 

Thanks. It was just astonishing that the vibrations transmitted upwards. I guess that means it was transmitted first to your floor, then to the walls, then to your ceiling (ie, your upstairs neighbor's floor). It was amazing that after all that traversal, there was still enough energy left for the upstairs neighbor to perceive it (whether he was disturbed by it or not).

I just felt surprised because, in my experience of apartment living (whether wood frame or concrete), I was most of the times disturbed by the footsteps from upstairs, but never from downstairs. I guess your old apartment did have a terrible structure.

On 11/7/2018 at 4:20 PM, FredGarvin said:

I did not really solve it.  The neighbours moved, the landlord sold the apartment complex and I entirely stopped playing late at night as I can only understand how frustrating this might become when your on the receiving end...  later heard that my upstairs' neighbour (a double bass daytime player) could also hear it but would not complain about it. 

 

Have been thinking for some time about buying a second piano to put it at the other end of my apartment where I know that no one is sleeping under and above the piano.  That way, my favorite neighbours can enjoy the piano percussions night & day 😆 

I am extremely curious (so much so that I registered for an account to ask this question): How on earth did the upstairs neighbor hear the key thumps?