Lindy Mayfield wrote:

> I have a fairly new condo house with a neighbour on the other side of
> my wall.  Which is now days built quite thick.  I never hear anything
> from their other side.  Doesn't mean that they don't hear me.=20
>=20
> As far as I can tell, music, TV, a bit loud talking, none of that the
> neighbours hear.  But if I play the piano, it disturbs them.=20
>=20
> My curiosity is why the piano penetrates the wall, and more general,
> how can I tell what noises would wake them up, and what noises would
> be ok.  it's just I guess a "normal" sort of concrete wall from a
> modern house.=20

It's easy to forget that a piano is essentially a percussion instrument.
All the other sound sources you cited are usually heavily compressed,
talking is (usually :) not percussive, whereas live piano has pretty
high peaks when you hit a key.

You may be lucky and can get an improvement by isolating the vibration
through the feet, as suggested, but this may not be the problem (or not
fix it completely).=20

I've seen pianos that had a pedal that would lower a felt so that the
hammers would hit the cords through the felt. Then there's the Yamaha
CP-70 series... :)

Gerhard
--=20
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