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Posted: Fri Apr 07, 2006 11:46 am
by Shroomz~>
<font size=-1>[ This Message was edited by: Shroomz on 2006-08-24 04:26 ]</font>

Posted: Fri Apr 07, 2006 12:05 pm
by Shroomz~>
<font size=-1>[ This Message was edited by: Shroomz on 2006-08-24 04:27 ]</font>

Posted: Fri Apr 07, 2006 12:52 pm
by nprime
Yeah, I thought the math on that was questionable myself.

R

Posted: Fri Apr 07, 2006 12:54 pm
by Shroomz~>
<font size=-1>[ This Message was edited by: Shroomz on 2006-08-24 04:27 ]</font>

Posted: Sat Apr 08, 2006 9:21 am
by nprime
My impression was that they weren't going for anechoic, but absolute diffusion.

I think they mostly built it because they could...and it really is an interesting experiment.

Also it looks soooo cool!

R

Posted: Sat Apr 08, 2006 10:10 am
by garyb
good studios are NEVER anechoic. that would be very unuseful.

Posted: Sat Apr 08, 2006 10:32 am
by Shroomz~>
<font size=-1>[ This Message was edited by: Shroomz on 2006-08-24 04:28 ]</font>

Posted: Sat Apr 08, 2006 12:48 pm
by Shroomz~>
<font size=-1>[ This Message was edited by: Shroomz on 2006-08-24 04:28 ]</font>

Posted: Sat Apr 08, 2006 1:49 pm
by decimator
It's clear that if you've seen some " Final Destination " movie, this room is quite a killer one ! :razz:

Posted: Sun Apr 09, 2006 2:07 am
by Shroomz~>
<font size=-1>[ This Message was edited by: Shroomz on 2006-08-24 04:29 ]</font>

Posted: Sun Apr 09, 2006 5:59 am
by nprime
From the article:

“The basic idea is that you walk in and very quickly you are listening to a musical balance. You are able to tell a story with a mix. The lows and the highs are easier to perceive because they have roughly the same ambience, the same reverberation time. We don’t have any fiberglass on the walls — it absorbs largely at high frequencies and is less likely to absorb at low frequencies. Any absorption in this room is caused by several processes, including the air turbulence around all these edges, and the scattering of reflective sound from all these surfaces. Dr. D’Antonio has referred to our principle in action as ‘ambechoic.’

“The room is conducive to accurate work because we have taken away the boundary effect by ‘eliminating’ the walls. The boundary effect is usually a speaker set away from the wall, which causes comb filtering because the sound hits the wall and bounces back at a different time than the direct signal from the speaker. Certain frequencies are canceled and certain frequencies are enforced, which is not a good idea in a critical listening environment.”

So...they were not trying to make it anechoic, that was not their goal at all.

R

<font size=-1>[ This Message was edited by: nprime on 2006-04-09 07:00 ]</font>

Posted: Sun Apr 09, 2006 6:38 am
by wayne
The anechoic chamber i visited had a suspended mesh walkway, and it was difficult to be in there for too long.

Posted: Sun Apr 09, 2006 6:58 am
by Shroomz~>
<font size=-1>[ This Message was edited by: Shroomz on 2006-08-24 04:29 ]</font>

Posted: Sun Apr 09, 2006 10:43 am
by garyb
real high quality rooms are NEVER anechoic. that would be terrible. it's diffusion u want!

anechoic rooms are for scientific purposes.

comparing sound to light, diffusion is that nice even all around glow that comes from a light source that does not appear to be a point. everything is illuminated evenly and shadows are almost completely eliminated. this is the readson for the white coating on a lightbulb or the translucent light shade.

anechoic would be like a spotlight in an absolute pitch black environment with no perceivable walls. nothing is illuminated except the exact thing the light source is pointed at and only the part facing the source can be seen. there would be no reflections so all would be black except that within the exact path of the light source.....

Posted: Sun Apr 09, 2006 6:17 pm
by nprime
The mesh walkway is standard because they need a bunch of the wedge shaped foam below you as well. If there was a floor it would cause reflections.

A quick look at the articles posted will explain what they did and why they did it.

As garyb said, an anechoic studio would not be useful.

R

<font size=-1>[ This Message was edited by: nprime on 2006-04-09 19:17 ]</font>

<font size=-1>[ This Message was edited by: nprime on 2006-04-09 19:18 ]</font>

Posted: Sun Apr 09, 2006 6:18 pm
by nprime
<font size=-1>[ This Message was edited by: nprime on 2006-04-09 19:24 ]</font>

Posted: Sun Apr 09, 2006 7:25 pm
by wayne
The room i entered was in the Australian Broadcasting Commission's studios in Adelaide, in 1980.

I remember a cocoon-like room, all a darkish sunflower yellow, and the walkway. You couldn't touch the walls, so i couldn't tell the composition, but it looked like large variable-radius yellow fabric bubble-wrap.

Felt like i was on the set of Space 1999 :grin:

It was disturbing for two reasons - no sonic reflection back to the ears left my sense of spatial position in a compromised state, and i quickly tired of the sound of my blood rushing around in my veins...

As garyb said, good for testing stuff - an engineer (real grey-coated one) took 15-year-old me in there to test the look on my face :grin:

<font size=-1>[ This Message was edited by: wayne on 2006-04-09 20:26 ]</font>

Posted: Mon Apr 10, 2006 3:28 am
by wayne
On 2006-04-10 04:04, Shroomz wrote:
These guys have a few cool little plugins including an anechoic room sim plugin :smile:
- that'd be perfect with Celmo's Flaming Super XDZ5W 2000 Master Killer Pumpkin Filter :smile: - perfect mastering chain!
Just spotted this cool little Scope plugin they've made too :smile:
'scope, not Scope :grin:

Posted: Mon Apr 10, 2006 8:17 am
by Counterparts
The (only) anechoic chamber I've been in was at British Telecomm's R&D buildings in Martlesham (quite nr. Ipswich where I grew up).

Wire mesh floor, sound-absorbing walls (wedge-shaped foam stuff). Very odd!

One of the BT engineers said that if you sit in their long enough, you can start to hear the sound of the air molecules' natural movements...

Posted: Mon Apr 10, 2006 9:59 pm
by wayne
Image