16th July 2006
|
#1 | | Gear interested
Joined: Jun 2006
Posts: 14
Thread Starter | which diffuser...why?
Hi Audio Friends!
here are two diffuser prototypes (semi finished)
1:
2:
which one would be most effective if at all?
the first one is alot cheaper to make!
any help is apprieciated.
tell me if im going about this the wrong way
thanks
|
| |
16th July 2006
|
#2 | | Lives for gear
Joined: Dec 2003 Location: berlin
Posts: 542
|
dont know, but the first one would be more bloody. it looks like a vietkong spear trap...
|
| |
16th July 2006
|
#3 | | Lives for gear
Joined: Mar 2004 Location: Phoenix
Posts: 6,661
|
I'd say the second one. There is more surface area for the sound to bounce off of. The purpose of a diffuser is to reflect and break up the sound. The first one is going to trap a lot of sound, and do who knows what with it. The second one has surface area for the sound to bounce off of.
I build some similar to the second one, and can attest to the PITA work it takes to make something like that.
Would be interesting to see a before and after report of a 2'x4' pair of the first one behind a set of speakers...might work better than you think it would
__________________
_________________
"What is a crossfire hurricane & why wasn't I born in one?"
Randy Wright
|
| |
16th July 2006
|
#4 | | Gear interested
Joined: Jun 2006
Posts: 14
Thread Starter |
Hey Thanks
what about for the first one (the vietkong speartrap) if i placed them closer together and maybe shorter?
(i was trying to replicate wedges like in an anechoic chamber)
so it didnt trap the sound so much.
the only way to know is to try i guess....
Thanks
|
| |
16th July 2006
|
#5 | | Lives for gear
Joined: Mar 2004 Location: Phoenix
Posts: 6,661
|
If you were gonna do the first one, I'd do it just like you are doing it. They are close enough together IMO.
The "big deal" is the amount of surface area on the end of the stick.
|
| |
16th July 2006
|
#6 | | Lives for gear
Joined: May 2005 Location: Tennesse Valley, AL
Posts: 705
|
Hey there,
What dimensions are the blocks on the second one, 2"?
I'm thinking of DIYing a few for a new mix room, so far, I've come across this: http://www.decware.com/p1312.htm
BTW, what type of wood are you using? Is pine ok to do this sort of thing?
All responses appreciated,
Andrew
|
| |
16th July 2006
|
#7 | | Lives for gear
Joined: Mar 2004 Location: Phoenix
Posts: 6,661
|
Not trying to hyjack this thread, but I used some 2"x2"x8' "sticks" that I picked up at home depot for mine. I used pine for one set, and redwood for another. The redwood is expensive ($5 a stick), but smells good and sure looks pretty.
|
| |
16th July 2006
|
#8 | | Lives for gear
Joined: May 2005 Location: Tennesse Valley, AL
Posts: 705
|
thanks though
I saw a similar item at Lowes, yet for the amount of those I would need, it'd almost be cheaper to plane (sp?) my own.
I'm going to try to make 3 2'x6' floor standing gobos. One side diffuser, one side 4" 703.
Still, other than the look (mine will probably be pine and painted) I imagine different woods have different absorbative/reflective characteristics?
For a semi-pro home studio/mix room, would pine suffice?
|
| |
16th July 2006
|
#9 | | Lives for gear
Joined: Mar 2004 Location: Phoenix
Posts: 6,661
| Quote: |
Originally Posted by A27Hull thanks though
I saw a similar item at Lowes, yet for the amount of those I would need, it'd almost be cheaper to plane (sp?) my own.
I'm going to try to make 3 2'x6' floor standing gobos. One side diffuser, one side 4" 703.
Still, other than the look (mine will probably be pine and painted) I imagine different woods have different absorbative/reflective characteristics?
For a semi-pro home studio/mix room, would pine suffice? |
Pine would do just fine for any studio IMO.
You could always buy some 2x6's and slice them into your own "sticks" if you have a table saw. I bought the 2x2's because I didn't have a table saw to cut them with. I cut my sticks into "pegs" with a skill saw.
You can get pine 2x6's at 12' lengths for cheap. Even get 2x10's if you got a truck to haul them.
Another option is the GML method. Buying sheets of 1" MDF and cutting it into "pegs".
Whatever works.
|
| |
16th July 2006
|
#10 | | Gear addict
Joined: May 2005
Posts: 323
|
I would think that with the first one you would lose some highs with the raggedey end surfaces, shorter wavelengths would be absorbed- I would also (intuitively) expect that design to be more absorbtive overall with the deeper, uniform depths slots between the slats (?)
|
| |
16th July 2006
|
#12 | | Lives for gear
Joined: Jun 2003 Location: Central Europe
Posts: 4,092
| |
| |
16th July 2006
|
#13 | | Gear interested
Joined: Jun 2006
Posts: 14
Thread Starter |
those look great .
im afraid i dont nearly have as much wood-working skills.
in terms of the type of wood i just got what i could find.
New Zealand seems to be lacking a heck of a lot of materials that this forum has easy access to.
im gonna make a bigger version of the first one and see if i can notice a difference when it sits behind a monitor.
cheers
|
| |
16th July 2006
|
#14 | | Lives for gear
Joined: Jun 2003 Location: Central Europe
Posts: 4,092
| Quote: |
Originally Posted by acousmatic those look great .
im afraid i dont nearly have as much wood-working skills.
| Neither have I ... Fortunately there are people who are quite skillful. If they receive proper instructions, the result can be pleasing ...
|
| |
16th July 2006
|
#15 | | Lives for gear
Joined: May 2005 Location: Tennesse Valley, AL
Posts: 705
| Quote: |
Originally Posted by djui5 Another option is the GML method. Buying sheets of 1" MDF and cutting it into "pegs". | Having been inside that room, I can say it is breath-taking for sure. I think that the pegs are actually 3/4" size, all cut at random lengths. Serious $.
GM really blew my mind with that one.
|
| |
16th July 2006
|
#16 | | Lives for gear
Joined: Nov 2005 Location: Kansas City
Posts: 3,144
|
second one more surface area and buy large stock and rip it less warp !
|
| |
16th July 2006
|
#17 | | Lives for gear
Joined: Mar 2004 Location: Phoenix
Posts: 6,661
| Quote: |
Originally Posted by A27Hull Having been inside that room, I can say it is breath-taking for sure. I think that the pegs are actually 3/4" size, all cut at random lengths. Serious $.
GM really blew my mind with that one. |
1" wood is never really 1"  2" is actually more like 1 and 1/2"
|
| |
17th July 2006
|
#18 | | Lives for gear
Joined: May 2005 Location: Tennesse Valley, AL
Posts: 705
|
ahh.
|
| | | |