I believe in Acoustic Sciences Tube Traps.....

[timogiodeson]

I don't think you'd want to provide 100% coverage of fiberglass in a room, of any thickness. Using 1" fiberglass will completely kill the room, but will leave some low end comb filtering issues. The result will be a dead and boomy room. No Good.

Far better is to stack the 1" panels across the corners of the room, making panels at least 4" thick, and using some remaining tiles evenly scattered throughout the room (as gullfo suggests) until you reach your desired RT60. Depending on the size and materials in the room this could be anywhere from 15-50% coverage for most rooms, usually around 25% (though again this is highly variable, there are equations to help figure out the precise amount of absorption a room needs to achieve the desired RT60).

I agree JWL, fiberglass can't be used like egg cartons , to much absorption .
We need a material with reduced absorption let's say NRC 0.30
I like more the Idea of 100% coverage of reduced absorption for a rehearsal room as a starting point,
so... I'm asking to the scientist again , considering the fire hazard egg cartons limitations,
Today, what the musicians can glue to their garage entire walls and ceilings instead egg cartons?
Pleeaase?

[jwl]

Hi Tim,

In answer to your last question I would say that the issue is not egg cartons, but rather the necessity of treating 100% of a room uniformly.

I just don't think it's a good idea. Different areas of the room have different sounds, and you can apply acoustic treatment to these differences to either minimize or accentuate the different tones. It gives you much more flexibility when recording, even more so if your acoustic treatments are moveable, which is what this thread is about.

[timogiodeson]

Hi Tim,

In answer to your last question I would say that the issue is not egg cartons, but rather the necessity of treating 100% of a room uniformly.

I just don't think it's a good idea. Different areas of the room have different sounds, and you can apply acoustic treatment to these differences to either minimize or accentuate the different tones. It gives you much more flexibility when recording, even more so if your acoustic treatments are movable, which is what this thread is about.

my point here is not the recording ... mr Swedien also told us about the eggs cartons of the past ,
if you love music , you'll find the way to record in any kind of room.

The point is, me, ears pain and fatigue!

second point is the fire hazard ...

and last point ,
I'm broke,

pleeease?

[xSpace]

is this what they call a hi-jacking?

cause it looks like one...

it drifts like one...

yep...

Officer can I get my luggage, I want to get off of this wayward ride.

[Bruce Swedien]

Hi Tim,

if you love music, you'll find the way to record in any kind of room.

so... can we help for a moment who make the music, the musicians? without musicians there is not recording no studios no business no Nada!
pleeease?

timogiodeson....

"if you love music, you'll find the way to record in any kind of room."

Now you have said something worthwhile....

Bruce Swedien

[timogiodeson]

Hi Tim,

if you love music, you'll find the way to record in any kind of room.

so... can we help for a moment who make the music, the musicians? without musicians there is not recording no studios no business no Nada!
pleeease?

timogiodeson....

"if you love music, you'll find the way to record in any kind of room."

Now you have said something worthwhile....

Bruce Swedien

thanks mr Swedien ...
but the way you quoted on your replay to me is confusing , it look like JWL said that to me...that's not fare!!

[Bruce Swedien]

Hi Tim,

if you love music, you'll find the way to record in any kind of room.

so... can we help for a moment who make the music, the musicians? without musicians there is not recording no studios no business no Nada!
pleeease?

timogiodeson....

"if you love music, you'll find the way to record in any kind of room."

Now you have said something worthwhile....

Bruce Swedien

thanks mr Swedien ...
but the way you quoted on your replay to me is confusing , it look like JWL said that to me...that's not fare!!

timogiodeson...

You are absolutely right. We both said it to you. Now you know how important it is!!!

And it is fair!!!

Bruce

[timogiodeson]

Hi Tim,

Different areas of the room have different sounds, and you can apply acoustic treatment to these differences to either minimize or accentuate the different tones. .

but axially the above you said JWL is very important, axially yes this is a real good point .

toward the corners it's even more painful !!!
and now the room cannot be treated evenly because each area of the room is different .. good point ,


please heeeelppp

[timogiodeson]

timogiodeson....

"if you love music, you'll find the way to record in any kind of room."

Now you have said something worthwhile....

Bruce Swedien

thanks mr Swedien ...
but the way you quoted on your replay to me is confusing , it look like JWL said that to me...that's not fare!!

timogiodeson...

You are absolutely right. We both said it to you. Now you know how important it is!!!

And it is fair!!!

Bruce

Noooo !!Bruce!!!, I said that !!! your quote ... you need to edit your quote!!!,
it look like JWL said to me that if I love music I will be able to record in any room , instead I said that to JWL... I , I'm the one, please please! is not fare! I'm the one that said that!

[AVare]

Andre and all......

You can't be so dumb as to not understand why we must know about the past....

For instance: You ask....

Why are you focussing on something (egg crates) that has become obsolete?

My answer....

We need to study the history of recorded music before we can develop the future. In other words, I think it’s very important for each of us involved in the production of recorded music, to understand what happened in the past, in the studio, to be able to move forward today.

I agree with totally on studying the past. I went through an egg crate phase myself.

I don't use egg cartons or crates or whatever..... (Wouldn't think of it!!)BUT.... I remember them well....

Agreed again.

Are you so fantastic that you know it all and don't need to know about the past????

I study the past constantly, to improve the future. As a matter of fact, the more I study the more I realize how much I really don't know.

As a slight side note, I just read Beranek's autobiographical interview from IEEE, I also study regularly the BBC RD reports back to the sixties, and Engineering monographs back to the 50s.

There was no disrespect meant to the past. What was meant is that the past and we have learned much. As was written by acoustician, fifty years ago the preferred acoustic materials were asbestos and horsehair.

Did you come into this world knowing everything???

No, and you are one of the people I learn from now.


Humbly,
Andre

[AVare]

[quote="timogiodeson"
I agree JWL, fiberglass can't be used like egg cartons , to much absorption for the 100% coverage approach.
We need a material with reduced absorption let's say NRC 0.30 evenly from about 125hz and up, because below that , drywall on studs hopefully already absorb about 30% of the sound...also we need to consider the extra absorption/diffusion/reflection... from peoples , couches, cabinets, instruments etc... [/quote]

How do feel about this material's performance?

Freq Absorption
125 Hz 0.27
250 Hz 0.66
500 Hz 0.33
1 kHz 0.66
2 kHz 0.51
4kHz 0.41

[mika]

I agree with totally on studying the past. I went through an egg crate phase myself.

thank god, i never used this kind of dangerous treatment.
When i started to look for acoustik solutions, i found a lot of information about basstrapping and helmholz resonators.
but i'm just a jung man in the sweet age of 27
cheers
mika

[timogiodeson]

...

How do feel about this material's performance?

Freq Absorption
125 Hz 0.27
250 Hz 0.66
500 Hz 0.33
1 kHz 0.66
2 kHz 0.51
4kHz 0.41

I don't know man... thanks , it's not easy really... thats why I asked ...

the absorption curve look OK because on a concrete floor drywall garage size room usually the RT60 is shortest at 125 Hz , longest at 1khz, and medium at 4khz... so the curve in theory should be OK ...
that 500hz there also is strange, who know what it is...

but for 100% coverage maybe to much ?... 1/2 sec. RT60 is the goal.
better to keep it live so eventually I can still trow some stuff in the corners...

thanks ...

[Bruce Swedien]

Andre.....

Your humility is noted. And appreciated.... Thank you.

You are a bonafide gasser to the first water....

Bruce Swedien

[AVare]

but for 100% coverage maybe to much ?... 1/2 sec. RT60 is the goal.
better to keep it live so eventually I can still trow some stuff in the corners..

Yes it is. People have been writing here continually that it is too much, and provide little diffusion.

You are moving from the general to the specifics of your room. What are dimensions, construction? The more detail, the better we can answer your questions.

Andre