Nasty slap echo

The echo you hear when clapping your hands is harmful to the sound. This can be cured with room treatment, furniture, window treatment, etc. It is best if you can cure the problem with furniture and window treatment. Whenever you add one of these items to the room continue to walk around the room clapping your hands until the room settles down. Be careful not to over do it. Too much can be worse than too little.

For the best cure for this problem, check out Michael Green's "Room Tunes" products. They will remove the slap echo without overdamping the sound. Simple small pillows you can affix to the wall to ceiling area with pins or tape. A combination of absorbtion and diffusion. Don't underestimate these things by looking at their appearance, they really work right.

Yep add natural room furnishings little by little (cushioned furniture, rugs, window coverings, decorative items, etc. to absorb sound until echoing is under control enough for things to sound good.

I have always the room was on the borderline of being overdamped. That is why i am scratching my head to this echo. Sounds like a "ping" that last for 1/2 second. Mainly at the front of the room. Will try to post some pics later tonight.

Streetdaddy, walk around the room clapping and you can pinpoint exactly the spot(s) where echo is concentrated. Treat this spot with something like the Room Tune pillows. You can make your own from fiberglass insulation and heavy duty aluminum foil as a temporary experiment. Adding treatment all over the place may be misguided and overdamp the room. Pinpoint the specific area and only treat there. Your "ping" is probably half way between corners at the wall/ceiling junction.