2. misc-audio
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Need opinions on ceiling reflections

All,I have a soffit that is running length-wise on the LEFT side of the ceiling (picture in my system). The ceiling is 8' and the soffit part drops down about 1'. The speakers and sound panels are positioned with a precision of 1/8th of an inch and it sounds amazing - especially on the RIGHT side. The music appears to come from way back and way outside the RIGHT speaker and you can actually "look" that images of various instruments playing in those empty spaces. But I have a heard time "seeing" those images on the LEFT side speaker. I have a feeling that this issue happens because the reflection point on the left side ceiling is a foot lower than the one on the right side ceiling. I was planning of getting some acoustic foam and attach it to the ceiling using T-pins (since it is a textured ceiling and foam tapes will not work). I assumed that this will absorb the reflections and could work on restoring the proper timing/clarity on left side.

Could you guys weigh in and let me know your thoughts? Please feel free to let me know if I am off and the issue is completely different.
128x128milpai
noromance's avatar
noromance
9,545 posts
 
I was planning of getting some acoustic foam and attach it to the ceiling using T-pins (since it is a textured ceiling and foam tapes will not work). I assumed that this will absorb the reflections and could work on restoring the proper timing/clarity on left side.
Don't use this stuff; it sounds bad - dry and grainy. Look at Owens Corning 703.

noromance's avatar
noromance
9,545 posts
 
Looks at room. Nice. Why not borrow one of your panels from the back of your space and try it on the soffit?
asctim
445 posts
 
That's a great looking room! 

I think you are probably right about that earlier ceiling bounce on the left having a noticeable effect.  Fiberglass as noromance suggested is more effective. 2" thick Owens Corning 703 should be enough to test it out. It might work best to treat both the duct reflection point and the right side ceiling as well to keep it symmetrical.
milpai's avatar
milpai OP
2,323 posts
 
@noromance , @asctim, Thanks.
The panels on the back are a bit thick (GIK 244) and mounting would be a pain. Any suggestion on where to get a square  2' X 2' X 2" thick panel? How do you mount such a panel on the ceiling? What about handling this stuff? Current GIK panels are all finished products, so handling is not an issue.
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