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Acoustic Treatment and positioning
Old 6 days ago
  #1
Here for the gear
 

Acoustic Treatment and positioning

Im using my recording setup to record a tabla. This is a instrument played sitting down to anyone who doesn't know. I have 4 panels of Owens Corning 703 held in pairs by hinges and some acoustic foam on the walls and ceilings. If any of you can give me possibly tips to improve the room sound or where it seems best to sit and record. Thank you all for reading this post, have a nice day.


Included are some pictures of my setup and a sketch I drew of the room, the room is about 40 x 20 feet.


https://ibb.co/C8dWFs5
https://ibb.co/Rp17xDH
https://ibb.co/r4QmV8v
https://ibb.co/QDkprnX
https://ibb.co/HPvhC0b
https://ibb.co/2My7xWR


Thanks
An example of my work
https://www.youtube.com/watch?v=DJMdE8lDi98
Old 5 days ago
  #2
Lives for gear
 

Hi there,

First, those few foam things are probably not doing anything for your acoustics and the ones in the corners are not basstraps (no matter how they're being marketed).

The way you have the OC panels set up (gobo style) is for when you want to isolate one instrument from another when recording multiple instruments together in one room.
To affect the acoustics, the panels would have to be placed close to the boundaries (walls) where they can absorb unwanted refections.

It's only by experimenting that you can find out where your instrument sounds best in the room.
But, since you have limited material to treat the whole room, I would suggest you to set up in the upper part of the room (according to your drawing) and place two OC panels against that northern wall.

The other two panels you can place;
1. either both on one side wall, or
2. one on each side wall, but NOT OPPOSING EACH OTHER DIRECTLY (if a panel is placed close to the corner on the left wall, then the other panel is placed 2 feet away from the corner on the right wall).
This way you eliminate flutter echo bouncing between the two parallel walls, while maintaining some livelyness.

In the area between these panels is a starting point to experiment and try to find the best sounding spot for your instrument.
You may try closer to the bare wall, closer to the OC panel, or with just one panel on the top/northern wall, etc.

I hope this helps point you in the right direction.

Success.
Old 5 days ago
  #3
Here for the gear
 

Ok thank you so much, I will probably make 4 or 5 DIY Owens Cornings Panels and put them over the rest of the room including the south side. Is there any technique or theory I need to study to know how best to place them? I
Old 5 days ago
  #4
Lives for gear
 

Quote:
Originally Posted by pshant View Post
Ok thank you so much, I will probably make 4 or 5 DIY Owens Cornings Panels and put them over the rest of the room including the south side. Is there any technique or theory I need to study to know how best to place them? I
Since it's for a recording room (different than a mixing room) it is about having it sound great, not neutral or "right", per se.
And, that is something that you can only achieve by experimenting and listening and relies on your own taste.

Do a search on "flutter echo", "parallel walls", "sound absorption", etc.
You want to prevent soundwaves bouncing between the parallel walls, but to not leave the room too dead, you do not put absorption directly opposing each other, you shift the panels relative to each other.

Old 5 days ago
  #5
Here for the gear
 

Ok thanks so much, but my idea of making more panels is useful in this scenario?
Old 5 days ago
  #6
Lives for gear
 

Quote:
Originally Posted by pshant View Post
Ok thanks so much, but my idea of making more panels is useful in this scenario?
It shure is useful.
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