Need suggestion on Room Acoustics

[avare]

Start with Rod's book Home Recording Studio: Build it Like The Pros.

Enjoy!

Andre

[Ethan Winer]

Originally Posted by Schumannz

Please give me proper direction.

Rod's book is great, though this covers the basics and you can read it now:

Acoustic Basics

--Ethan

[Schumannz]

Thanks a lot! Any other suggestions?

[erikdrink]

Try this... It might give you some info...

Need advice on waterfall!

[Glenn Kuras]

I got your PM and it seem you are getting good advise from the people above. You can also use the following articles and videos to help.
Educational Room Acoustic Videos: GIK Acoustics
Acoustic Primer - Room Setup, Testing, Treatments

[avare]

Our (all the responders) bad! Everything for the OP is in the Studio/Acoustics reference guide right at the top of the forrum!

Andre

[Ethan Winer]

^^^ LOL, indeed Andre. If only people would read that.

--Ethan

[Schumannz]

Thanks a lot for all the advices everyone! I did go through the materiels and am trying to figure out the possible solutions....
I'll ask for more advice as soon as i am ready.

Thanks again!

[Schumannz]

Hi again! Well thanks for the information you all provided, i was able to construct some Bass Traps, absorbers and a cloud with Glasswool (Rockwool isn't available). Room sounds better now. I have question on diffusion.

What is the suggested measurement for the Diffusers
1. at the back of the listening desk?
2. front of the listening desk?
3. side walls....

I found this measure tool at the following site. But couldn't find a way to get a proportionate measurement for different room sizes.

QRDude: Quadratic Residue Diffuser calculator

My room size: 12'x13'3"x9'2"

Thanks!

[Coreywilliams]

foam by mail is what you need for alllllllllllllllllllllllllllllllllllll low noises. It will make your recordings "boss"....

[Schumannz]

Originally Posted by Schumannz

Hi again! Well thanks for the information you all provided, i was able to construct some Bass Traps, absorbers and a cloud with Glasswool (Rockwool isn't available). Room sounds better now. I have question on diffusion.

What is the suggested measurement for the Diffusers
1. at the back of the listening desk?
2. front of the listening desk?
3. side walls....

I found this measure tool at the following site. But couldn't find a way to get a proportionate measurement for different room sizes.

QRDude: Quadratic Residue Diffuser calculator

My room size: 12'x13'3"x9'2"

Thanks!

No suggestions????

[jim1961]

Originally Posted by Schumannz

No suggestions????

Personally, I dont understand the question.....

Measure the diffusers?

Measure the room response with them, and then without them. QRDude will tell you what the diffusers are supposed to be doing.

[Jens Eklund]

Originally Posted by Schumannz

Please give me proper direction....

4m x 5m x 2.5m room - modal resonance problem

[Schumannz]

Originally Posted by jim1961

Personally, I dont understand the question.....

Measure the diffusers?

Measure the room response with them, and then without them. QRDude will tell you what the diffusers are supposed to be doing.

Sorry, what meant is, what should be the optimum size of the diffusers.
Width, Length and Height, proportionate to my room size.
I intend to use them at the Back, front (?), sidewalls and the ceiling of the listening point.

Thanks

[Schumannz]

Originally Posted by Jens Eklund

4m x 5m x 2.5m room - modal resonance problem

Thanks..

[jim1961]

Originally Posted by Schumannz

Sorry, what meant is, what should be the optimum size of the diffusers.
Width, Length and Height, proportionate to my room size.
I intend to use them at the Back, front (?), sidewalls and the ceiling of the listening point.

Thanks

Without ETC measurements AND specific acoustic room goals there is no way to say what you need or where. But if you just want to experiment and have flexibility, build a couple N7's and put them in different places. I say this cause you can add more N7's later and make a multi panel array by joining several if you wish to later.



You could go with something like this ^^^^

Keep in mind the minimum distance requirement. 3-4ft in height would be good.

[Glenn Kuras]

Originally Posted by Coreywilliams

foam by mail is what you need for alllllllllllllllllllllllllllllllllllll low noises. It will make your recordings "boss"....

Careful!!!
Testing Acoustic Foam Bass Traps

[Schumannz]

Originally Posted by Glenn Kuras

Careful!!!
Testing Acoustic Foam Bass Traps

Yup that's exactly what happened to me several months ago. I found the foams to cut just the high frequencies, and leaving the Low Frequencies as they were before....as a result my room went from bad to worse!

[Schumannz]

Originally Posted by jim1961

Without ETC measurements AND specific acoustic room goals there is no way to say what you need or where. But if you just want to experiment and have flexibility, build a couple N7's and put them in different places. I say this cause you can add more N7's later and make a multi panel array by joining several if you wish to later.

Attachment 307913

You could go with something like this ^^^^

Keep in mind the minimum distance requirement. 3-4ft in height would be good.

Thanks. I'll try to make some N7 diffusers and experiment with them as your advice. I'll surely report back later with some results and details of the outcome...

[jim1961]

Originally Posted by Schumannz

Thanks. I'll try to make some N7 diffusers and experiment with them as your advice. I'll surely report back later with some results and details of the outcome...

Just keep in mind a single N7 thats less than a foot wide wont make a huge difference. But I am suggesting this route rather than building some immense and complex one like a N41 or something because the N7 is easier to build and like said before, can be joined together to make one large panel.

And if you are going to put more than 2 together, you need to build a reverse panel (see barker sequence).

[Schumannz]

Originally Posted by jim1961

Just keep in mind a single N7 thats less than a foot wide wont make a huge difference. But I am suggesting this route rather than building some immense and complex one like a N41 or something because the N7 is easier to build and like said before, can be joined together to make one large panel.

And if you are going to put more than 2 together, you need to build a reverse panel (see barker sequence).

[Glenn Kuras]

My room size: 12'x13'3"x9'2"

Diffusion is better then a flat wall, but in a room your size I would focus on the low end. If you can test the room with the following program and go from there.
Room EQ Wizard Tutorial Video

[jim1961]

Originally Posted by Glenn Kuras

Diffusion is better then a flat wall, but in a room your size I would focus on the low end. If you can test the room with the following program and go from there.
Room EQ Wizard Tutorial Video

+1

The low end certainly will be important. But in the end, unless you want a dead sounding room, you may prefer diffusion over flat walls where bare walls still exist after your low end treatment.

[Schumannz]

Thanks a lot Glen and Jim!