Acoustic panel, construction for best effect

[Besserwissern]

I am going to install acoustic panels in a room and I'm wondering about the setup. Two options: 1. Directly against the wall. 2. Mounted on battens to create an air gap. Which option dampens sound best?

 

[knegolf]

Going to install acoustic panels in a room and have some questions about the setup.
Two options:
1 Directly against the wall.
2 Mounted on furring strips creating an air gap.

Which option dampens sound better?

Given that you use the same panel in both situations, the functionality is better with the air gap, provided the panels don't have a hard backside. If you're using furring strips and an air gap, thereby increasing your construction height, you'll get more effectiveness per thickness if you fill the air gap with sound-absorbing material.
What type of acoustic panel are you planning to use?

 

[Besserwissern]

Given that you're using the same board in both settings, you will get better performance with the air gap provided the boards don't have a hard backside. If you are going to use battens and an air gap thereby increasing your build height, you will get more efficiency per thickness if you fill the air gap with sound-absorbing material. What type of acoustic panel are you planning to use?

I was thinking of fibrotech. Smart idea to fill the cavity with something.

 

[knegolf]

Check with the manufacturer if it is sufficiently sealed so that you can fill it with rockwool or similar material. In the worst-case scenario, you may need to complement with acoustic fabric between the rockwool and the panels to prevent stone wool fibers from entering the house. It will be a relatively inexpensive improvement compared to just having cavities behind the panels.

 

[Besserwissern]

Check with the manufacturer if it is tight enough that you can fill it up with rockwool or the like. In the worst case, you may need to supplement with acoustic fabric between the rockwool and the panels so that you don't get stone wool fibers in the house. It will be a relatively cheap improvement compared to just having cavities behind the panels.

Where do you buy the acoustic fabric?

 

[knegolf]

https://silentdirect.se/sv/products...ze3B8rQslsgMn_THNwbDoG0LZZ5R1qLwaAos0EALw_wcB

Here you have an example where it is available by the meter. I would first check with the manufacturer of the acoustic panel if it is even necessary, considering that the acoustic fabric is mainly used to hold the insulation in place if you are covering a slat wall or similar. With the panels you mentioned, I guess you could manage without the acoustic fabric.