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[klaukholm]

Would large wooden cylinders or pillars in various sizes 9-20 inches in diameter function well as diffusors?

[martindale]

...they would function as something...possibly absorbers as well....hard to say without knowing the material they are made of and what's inside.....and how many you have and where you place them....if you are doing classical music recording (which seems to be from your signature), when I worked for Sony Classical we carried a few hundred sheets of plywood with us regularly to place around halls to brighten up the sound. Very crude, but effective.  If you have these cylinders....try them and listen to what happens.

[Ethan Winer]

klaukholm wrote on Sat, 03 January 2009 03:49

Would large wooden cylinders or pillars in various sizes 9-20 inches in diameter function well as diffusors?

It depends a lot on the size of the room and far performers, microphones, and/or ears are from the curved surfaces. In small rooms QRD type diffusors are much more appropriate. You might find this video interesting:

http://www.realtraps.com/video_diffusors.htm

--Ethan

[Barry Hufker]

Ethan,

That's an entertaining and educational video.  Thank you.

Barry

[garret]

This sounds a bit like the pipes in the Abbey Road echo chamber.

There are better pictures and diagrams in Recording the Beatles... but here are a few pics I found online.

http://revolutionrecording.com/images/EchoChamber.jpg
http://www.dwfearn.com/Abbey-Road-Echo-Chamber.jpg

I'd think they would do something.. but they take up a lot of room.  You could spent a lot of time weaving in and around the pipes as you work... could be good exercise.

[Barry Hufker]

My question is: which frequency(ies) do you tune the pipes to?

[AlexVI]

Kjetl,
Olympic Studio 1 in London has a number of tall cylinders a bit like you describe, mounted in the walls. They have one flat side with a carpet material on, and I can't tell you what's inside. The concept is simply that one can rotate them to show all the carpeted flat sides, and have greater absorbtion, or hide the flat sides and have wooden pillars facing the room, giving, I assume, greater diffusion, reverberation, etc...

http://www.olympicstudios.co.uk/studio1/
(shown mounted in the walls in the small picture on the left)


AVI

[franman]

martindale wrote on Sat, 03 January 2009 08:52

...they would function as something...possibly absorbers as well....hard to say without knowing the material they are made of and what's inside.....and how many you have and where you place them....if you are doing classical music recording (which seems to be from your signature), when I worked for Sony Classical we carried a few hundred sheets of plywood with us regularly to place around halls to brighten up the sound. Very crude, but effective.  If you have these cylinders....try them and listen to what happens.

I gotta agree that they would 'do something'... I have used wood Polys in the past on larger room projects. I would call them scattering devices, but not diffusors. There is also some membrane effect to be had for LF absorption, as long as the materials is compliant (not 1" thick)... I know that Mark used to carry all that plywood around with Sony.. that's why his back is f___d up now... sucks being a roady when you're supposed to be the engineer!!   Cheers Smiley!!

[andrebrito]

http://www.boomstudios.pt/

Used in one of the best studios in Portugal designed by Newell

let the flash apresentation end to see a 3D picture

[andrebrito]

you can click on the different rooms and have a look inside. Use the mouse it is fun

side note - have great respect about Newell's work but prefer  rooms that are not as dry as these

[franman]

Wow.. that flash site is a 'wild ride'... I love the panoramas and we have some on our site, but the aspect is soooooo over wide that it's kinda of dissorienting..

In the control room, they have FIVE sets of monitors setup... I always get a kick out of that. I wonder if any of them can sound good as you try to jam so many monitors into the listening field..

Yeah yeah, I realize it's just a photo, but we always try to photo our rooms with ONLY the main monitors in place.. shows the room and the design the best that way. Everybody knows what NS10's and 1031A's look like...

Anyway, they do have some Poly's in the big room, but it's hard to tell what type of dimension they are with the overly wide view angle. They also look like the rotate?? Do you know Andre?? Have you been there...?

[andrebrito]

Yes, they do rotate ! One side acts a diffuser and the other part has absorbent material. I have been on that studio myself. It is a nice place !

About the pictures of the control room they need to show they have material for bands and artists to say : uau ! this is a great studio... they don't care about acoustical treatment lol

I think the diffusers are 80 cm per 2.5 m maybe more. I can't recall, I was in that place 5 years ago

[Bruno Gouveia]

I've been there too, and the big room is fantastic, beyond any kind of reproach! The control room, well, has problems.I also don't agree with Phil Newell's totally dry control room approach but anyway he is a reference. But besides the main room this studio has another big strength, it's really robust in terms of gear, lots and lots of it. It's important to add that this studio was built by the "golden hands" of portuguese music, M

[Darius van H]

Wow, crazy panoramas on that website!