[George Necola]

Originally Posted by doorknocker

Turn it into an acoustic guitar showroom! I've noticed that some clever folks do that so that the guitars all seem to sound sparkling and powerful.

Jokes aside, are you recording in there?

no, this time it's only for an office room to improve the noiselevel. We built project and planed prostudios (acoustics primary with a partnercompany) but we never tried just to tame down the reverb tails..

What you wrote above should be fine if all you need is to calm things down a bit.
Traps on the ceiling, perhaps some on the walls. I know GIK does traps with prints on them. In case the aesthetic value is high you could go for something like the soundwave products (google Soundwave panel)

http://www.soundstage.com/planethifi/pics/200311_soundwave_room.jpg

Perhaps the Auralex audiotile tickles your fancy.

http://www.auralex.com/partscience/audiotile.asp

If the aesthetic value isn't really there, just go with ceiling traps and heavy curtains thumbsup

thank you!

cheers