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Another DIY absorber panels build
Old 12th August 2019
  #1
Gear Maniac
 

Another DIY absorber panels build

So I built a couple of absorbers for my home studio and home theater.

My intention was never to have a perfect sound, since I know that would take a lot more effort than just adding a couple of absorbers, but I'm happy with the results considering the terrible initial situation and money/effort/time invested.

Here's an IMGUR album with more pictures: https://imgur.com/a/1UypNAq

I used slabs of 2'' rigid Rockwool of 8 pound per cubic feet qith 2'' air gap. I didn't use 4'' because I thought it would have been overkill with my small monitors. I will replace the panels on the corners with 4'' if I add a subwoofer in the future or buy bigger monitors.

I think now my main problems are those dips at 70-80Hz and 130Hz. Honestly I don't think there's much I can do to fix that other than investing serious money, but if anyone has some advice please do not hesitate to comment.

I will try moving my desk around and see how that changes the sound using RTA and REW but I don't expect any huge changes to be honest.



Edit: I moved the desk around and tried a couple of positions and it seems I was able to minimize the dip at 130Hz.
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Another DIY absorber panels build-img_20190811_143551.jpg   Another DIY absorber panels build-after.jpg   Another DIY absorber panels build-before.jpg   Another DIY absorber panels build-flame-after.jpg   Another DIY absorber panels build-flame-before.jpg  

Another DIY absorber panels build-after-spl.jpg  
Old 17th August 2019
  #2
SRS
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Your panels look nice. Great job. But don't underestimate the effect on the low end that substantial absorption has. Go as thick as you can without losing too much physical space. Those peaks and nulls are tough to address in a non-purpose-built room. Not sure what your ceiling looks like in the photo. A cloud will also help you out, even in the low-end if built substantial with enough mass/absorption and area to take down some more bass. You have the hard floor, soft ceiling setup. Which can be very good acoustically. Bottom-line is you simply need more bass trapping, quite likely.
Old 19th August 2019
  #3
Gear Maniac
 

Quote:
Originally Posted by SRS View Post
Your panels look nice. Great job. But don't underestimate the effect on the low end that substantial absorption has. Go as thick as you can without losing too much physical space. Those peaks and nulls are tough to address in a non-purpose-built room. Not sure what your ceiling looks like in the photo. A cloud will also help you out, even in the low-end if built substantial with enough mass/absorption and area to take down some more bass. You have the hard floor, soft ceiling setup. Which can be very good acoustically. Bottom-line is you simply need more bass trapping, quite likely.
Thanks for the tips.

The ceiling is a brick vault so I can't just drill and hang stuff (I'm renting).

2 of the 4 corners of the room are unusable to add bass traps since there is a door in one and an built in-wall closet in the other.

I've considered adding another layer of rockwool to the panels on the corners but I'm not sure how much of an improvement that would be considering my main problem now is the geometry of the room.

I know the room it's not even close to perfect but it's now at least usable to write music (not mixing) which was my objective.
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