Hi everyone. Bill Bairley at bad bear studios in Florida built some "skyline" style diffusors using 1 inch cedar blocks and a proportion grid created by the BBC. I thought someone else might want to use this design so i converted the proportions for this post and made a "precut" list for those of you who want to buy or cut the 1x1's or 2x2's yourself and want to know how many of each length to cut. Here's the proportion grid:

0 3 4 1 2 3 3 1 4 2 3 3
3 0 1 4 2 1 1 3 3 2 1 1
3 1 1 3 1 3 2 2 1 0 2 2
2 2 2 2 0 4 3 2 3 2 1 1
3 3 1 1 3 1 1 3 4 3 1 3
2 3 2 1 2 0 3 2 4 2 1 0
2 3 2 1 3 1 2 2 3 1 3 4
2 0 2 4 4 0 1 2 1 4 2 2
3 4 1 0 1 3 3 1 0 2 3 3
1 3 3 1 2 4 1 2 0 1 3 1
2 1 2 3 1 3 3 2 4 2 3 4
2 4 2 3 3 1 1 2 0 3 1 0

And here's a list of how many of each length block you will need when precutting the wood:

Count of number:

number Total pieces of this length (height actually) of wood

0 13 (no cuts here if you're going flush with the surface)
1 38
2 38
3 40
4 15

Grand Total 144 pieces (131 if 0's aren't used)

These will work with 1x1 or 2x2 inch squares (cut longer depending on the graph number- ie. graph designating number 3 would mean use a 1x3 inch block or 2x6 if using 2x2's)...Here's a link to the original post by Bill (scroll down to message #94333):

mckay
bounce inventive audio