QUOTE(Piano Pupil @ Jun 12 2012, 10:21 PM)
When my living room window blinds were opened, the piano sound was much improved and more rounded.
Similarly, I have noticed a better sound since it was put up against the wall.
How can one further improve the acoustics of the room (alter external things) to improve the quality of the upright piano sound?
I am no expert but have just observed a few things over time.
Soft furnishings, books, duvets and people tend to absorb sound so the more of these things you have around the more subdued the sound will be.
Tiles, plastered walls etc tend to just reflect the sound without any sympathetic vibrations so will deliver a brighter,colder sound.
I like wood as an acoustic surface but not everyone in my house/street agrees (we recently put down a wood floor and the piano sound now really fills the room).
Curved wood as in certain opera houses and concert halls is best of all, but not easy to get into the design of an average living space!
So if you prefer a softer sound introduce rugs etc - even a small carpet under the instrument pedals makes a difference I 've found. Otherwise remove them. Experimentation will be key.