Excessive sibilance and edge....treat room?


Hi Everyone,

Before I purchase room treatments...

Will treating room help in reducing excessive sibilance and edge? Besides equipment mismatch etc etc...what causes a room to "sound" that way?

Room size is 10 x 14 x 10. It's a bedroom...concrete walls. Wood laminate floor with throw rug. Drop ceiling.

Thinking of treating 1st reflection points...side walls, front wall and back wall(back wall is actually a floor to ceiling wardrobe).

Should I use absorbers (foam or rockwool) or diffusors to achieve my goals? I was thinking absorbers for side walls and diffusors or absorbers for front wall. What do you guys think? Might skip treating the back wall altogether since it's a wardrobe. If I do treat the backwall...I think it would definitely be foam as it's light and I can use double sided tape.

Thanks for your help.
pc123v
Pc123v,

My advice to listen in the nearfield was not to advocate that this be the setup you use, but, rather, as a means of diagnosing a problem. Because you heard better sound in that position, it does indeed indicate that you would benefit from proper room treatment. This can be as simple as covering part of the walls with a tapestry or having an area rug on the floor. Bare walls--without bookcases or anything else to scatter sound--are sources of problems.

As for actual acoustic treatment, there are panels that can be purchased that are reasonably decent looking so that your room does not have to look like a recording studio. I will mention, again, GIK Acoustics. They make relatively thin panels that can they cover in fabric that can be printed with whatever you want (you send them a photo) or some stock pattern/image that they frequently use. I am not saying that they are the best, in terms of sound, but, I do know that their products work and look decent.

I know some creative people that have cut plywood into geometric patterns and then covered the plywood with fill material and then covered everything with colored fabric. These geometric blocks were then assembled into a really nice pattern that looked like art, rather than room treatment, and this worked reasonably well.

It often does not take that much treatment to transform a room (which means it is also easy to transform a room too much). Good luck.
excessive edge May be the room, but too often its a poor interaction between the components, cable, etc. It is OH SO VERY difficult to fix that kind of thing with room treatments. Usually with excessive treating, you still get the edge, but with a dead sounding rest of the audio spectrum.
Silk dome tweeters are 'slow'. They stretch out the HF resulting in your issue. Soft and sibilant, and therefore with an edge. Aluminum, Beryllium, Titanium, Mylar. For in-between, Phenolic is a good compromise. Soft tweeters suck!
"Silk dome tweeters are 'slow'. They stretch out the HF resulting in your issue. Soft and sibilant, and therefore with an edge. Aluminum, Beryllium, Titanium, Mylar. For in-between, Phenolic is a good compromise. Soft tweeters suck!
"
Are you kidding?
I think you misunderstood me there. I gave a list of the opposite of 'soft'. If however you didn't misunderstand, then no, I'm not kidding. I hear the same thing with soft dome tweeters.