Control Room Ceiling Panel...

[aschatzb]

Hello!

I'm getting ready to treat the ceiling of my control room over the mix position. About 60% of the walls are covered in 2" and 3" 6 pcf fabric covered compressed fiberglass board... The back wall is treated with a combination of absorbs ion and diffusion.

The room is sounding really great, except a little boomy and unfocused about 250hz and below. The ceiling is currently untreated and untextured (one layer of 5/8s gyps over 3/4 ply). I'm thinking about building a fabric covered acoustic panel and hanging it over the mix position. The panel would be 2 inch, 6 pcf compressed fiberglass board 4x8. I would glue five 2x2 q-fusors by auralex to the surface of the fiberglass board, build a wooden frame, and cover with fabric, suspend from the ceiling...

that's the concept, I'm not sure how much this will help with the boomyness. Any suggestions or ideas???

thanks!

andrew

[Ethan Winer]

Andrew,

> The room is sounding really great, except a little boomy and unfocused about 250hz and below. <

A cloud over the mix position is useful, but to target problems below 250 Hz you should be looking at rigid fiberglass type bass traps straddling as many corners as possible.

--Ethan

[aschatzb]

HEllo Ethan,

In reference to rigid fiber glass traps in the corners, I've already got them in place:)

As far as the cloud is concerned, would you waste your time with the diffusion attached to the face of the riid fiberglass board? Does it make a difference if the cloud is at an angle? Any info or links for cloud construction would be extremely uselful!

thank you:)

andrew

[z60611]

There's lots of ways to build clouds.

Here's two:

http://www.bobgolds.com/AbsorberMount/home.htm <- plastic stucco fastiners (add bag)
http://www.recording.org/ftopict-26889.html <- David French's aluminum guttering material

then there's
- false ceilings
- contracarpet
- Newell's 4' hangers
- one end open 10'x1'x1' HVAC ducts full of absorbtion
- etc

[aschatzb]

Should I skip the diffusors and just use rigid fiber glass board???

[z60611]

aschatzb:

What are the dimensions of the room (length, width, height)?

Any pictures?