Need advice TODAY!!!!!!! (help?)

markmarshall · Post by **markmarshall** » Sat Feb 25, 2006 2:53 am

Hey all.

I'm about to insulate my studio ceiling.

(see http://www.johnlsayers.com/phpBB2/viewtopic.php?t=5603 for reference)

My question is - is there any benefit to slanting the individual sections of ceiling like the below pic? (two options shown). I thought it might be a benefit to keep the ceiling from being parallel to the floor. I WILL be doing a cloud below this.

I'm essentially doing 'glass between beams, with a canvas cover. The pic is a close-up - there are actually 5 beams

This is going to happen TOMORROW, so I really need advice on which way to go. Unless I hear otherwise, I'm going with the top one.

Thanks so much for reading,

Mark

knightfly · Post by **knightfly** » Sat Feb 25, 2006 2:57 am

No.

If those bottom and top layers are your two masses in a m-a-m envelope, and you need isolation, HELL no.

If you don't plan on absorption being open to the air within your space, and don't want flutter echo, MAYBE.

I'll be up late this afternoon, so if you can clarify your question a bit I'll try again... Steve

markmarshall · Post by **markmarshall** » Sat Feb 25, 2006 2:59 am

knightfly wrote:No.

If those bottom and top layers are your two masses in a m-a-m envelope, and you need isolation, HELL no.

If you don't plan on absorption being open to the air within your space, and don't want flutter echo, MAYBE.

I'll be up late this afternoon, so if you can clarify your question a bit I'll try again... Steve

WOW you're fast - I was re-editing my post when you posted back. So I should just go flat, huh?

It's not for isolation - it's to deaden the room a bit, as per the advice you gave me in the post referenced above.

Thanks!

M.

knightfly · Post by **knightfly** » Sat Feb 25, 2006 3:01 am

Yeah, if all you're looking for is good sound IN the room; if you need isolation to the above area, you're looking at more details and possibly more construction.

Fast - just luck of the draw, sometimes it takes me a week to get to things

markmarshall · Post by **markmarshall** » Sat Feb 25, 2006 3:04 am

knightfly wrote:Yeah, if all you're looking for is good sound IN the room; if you need isolation to the above area, you're looking at more details and possibly more construction.

Fast - just luck of the draw, sometimes it takes me a week to get to things

Then I'm lucky today!

Yeah - I'm looking for good sound IN the room. So the slant is a good idea? I was planning on doing the slant towards the console (and the open end of the room), as opposed to bouncing sound back towards th back wall.

One important note - it'd be WAYYYY easier for me to do it flat - so I don't want to go to the trouble of the slants unless it will improve the sound.

AND...

While I got you - could you take a look at the other post - I asked a questions about clouds, and the advice would be helpful. BTW - the speaker advice you gave worked magic - the room sounds SO much better. But, of course, once I did that, I heard other stuff that's dragging me into doing the ceiling a bit more properly.

Thanks again.

knightfly · Post by **knightfly** » Sat Feb 25, 2006 7:31 pm

Keep it flat and filled; those joists are too close together to work as a flutter killing device because the short pattern will "average" out, defeating the purpose of splaying. Better to keep full absorption depth all over, that will kil flutter anyway... Steve

markmarshall · Post by **markmarshall** » Sat Feb 25, 2006 10:14 pm

OK - one important note:

That wasn't to scale. The actual beams are spaced about (yeah, about - the guy who built the loft wasn't particular, I guess) 23" apart. So it'll actually be wider in relation to the console. Don't know if it makes a difference, but figured I'd mention it.

It looks more like this:

knightfly · Post by **knightfly** » Sun Feb 26, 2006 5:25 am

Nope; keep it flat... Steve