I wouldn't put the wooden back on it so the sound can pass through and then reflect off the wall back through the bass trap for further absorption. Air gaps really boost the effectiveness of traps. Try with a fabric back.
I thought the same thing until I saw that it's basically a thin piece of card. Something like that would only reflect high frequencies and those aren't making it through the rockwool.
I agree.the backing is there for structural reasons. But it could be replaced with slats to provide triangulation. Also, it looks like insulation as well as the walls help keep it stable.
I’ve got some large cabinets in my theatre room, I was going to give them away, now, I think I will fill them with the acoustic insulation and keep them
Follow up. I built these and they didn’t do all that much to tame 40-60hz. I built 2 diaphragmatic bass absorbers for 40hz and it was infinitely more effective. It took several hours to plan and build and they are extremely heavy but well worth the effort.
Thank you for the video; it presents an interesting cost-effective solution. Have you conducted any acoustic measurements before and after its implementation? If so, could you share them with us?
Sir, I apploud you. Im looking for making several acoustic panels for my streaming studio and it never crossed my mind to just get some old “free” furniture from Facebook market to stuff it with insulation. Thank you so much for the idea!
You don't want the fibres to escape! Plus, a few millimetres of board wouldn't stop anything but the very highest frequencies - and those have already been absorbed by 3 layers of rockwool. Sound wise, it doesn't make a difference.
That's a great idea, thanks for sharing. I'm thinking of building the same with the BILLY bookshelf because I have a very low ceiling. Quick question: Why did you cut these card strips? Couldn't you just staple the fabric on the interior wood?
Amazing I'm literally starting to prepare doing that. I'm wondering, though, finnsby's seem to be 9 inch thick. Isn't this too much for a bass trap? or is it ok?
Maybe a dumb question but.. how well does this keep the fibers from escaping? Just asking because I know breathing that in is not very healthy. Great video by the way!
Thanks. Judging by other's accounts, a reasonably quality fabric should prevent fibers from escaping. You could always wrap the insulation in plastic, as extra precaution.
@@ProbablyStereoClubwouldn’t plastic stop the the absorption of base frequencies. Everything else I’ve seen says it should be breathable cover plastic obviously isn’t?
The plastic will have little to no effect sonically... in fact you could just use the material as is in the wrapper... not attractive but it would work. You could just make a cloth slip to go over it.That is what I plan to do. Then you don't need to handle the material directly at all! @@teapotwood2817
Should have wrapped the mineral wool in plastic due to potential floating micro particals (floating in your lung)! And, no, the bass trap effect would not be reduced, because of the plastic.
For this one, I used 3 x 75mm thick rockwool and the sheets are the right width - so its just a matter of measuring (can't remember) the height of the shelf and do the maths.
Not enough; missing the airgap behind, doesn't cost anything and also just the corners isn't enough impact in most rooms, don't forget the ceiling corners! The mineral/glass wool used is perfect, not to dense.
Agreed. But that stuff is fairly heavy and when combined with particle board shelves calls for at least one helper (and anyone who's not involved with recording rarely wants to help) to move them into the space and help with placement.
I wouldn't put the wooden back on it so the sound can pass through and then reflect off the wall back through the bass trap for further absorption. Air gaps really boost the effectiveness of traps. Try with a fabric back.
I thought the same thing until I saw that it's basically a thin piece of card.
Something like that would only reflect high frequencies and those aren't making it through the rockwool.
I agree.the backing is there for structural reasons. But it could be replaced with slats to provide triangulation. Also, it looks like insulation as well as the walls help keep it stable.
Good logic
Bravo!! Brilliant!! Very imaginative and budgetwise. Thanks for the presentation...
Thank You sir, we need more people like you !
I’ve got some large cabinets in my theatre room, I was going to give them away, now, I think I will fill them with the acoustic insulation and keep them
You’re a genius. I was going to build panels tomorrow but I’m just gonna grab bookshelves
Follow up. I built these and they didn’t do all that much to tame 40-60hz. I built 2 diaphragmatic bass absorbers for 40hz and it was infinitely more effective. It took several hours to plan and build and they are extremely heavy but well worth the effort.
@@alexmacias3837 Thanks for your update! Do you have a pointer (links might not work here) for an online resource to what did for the diaphragms?
@@alexmacias3837It would be great if you could make a video about how you did it.
@@alexmacias3837 Maybe because the bass traps need to be a lot thicker, like minimum 17 inches to really absorb bass
Great idea, but I wish you would have measured the frequency response before and after!
Thank you for the video; it presents an interesting cost-effective solution.
Have you conducted any acoustic measurements before and after its implementation?
If so, could you share them with us?
No i haven't, but the improvement was significant. They do exactly the same thing as any other insulation based treatment, just a lot cheaper ;)
Sir, I apploud you. Im looking for making several acoustic panels for my streaming studio and it never crossed my mind to just get some old “free” furniture from Facebook market to stuff it with insulation. Thank you so much for the idea!
Did you perform any before-and-after room response measurements to demonstrate the effect of this treatment?
great idea!
Haha i had this idea a while ago, im glad someone else is as lazy (smart) as me :)
Thanks for the tutorial! But does this DIY make your beard grow and your hair fall out? :)
Trevligt med en landsman, gillar idén :)
I wanna be mad...But low key this is by far the greatest of all Ikea hacks! I am over here slow clapping in Ohio.
Det här måste jag prova!
Briliant
What are the card strips for?
Why did you cover the back of it? Why not let sound pass through it?
You don't want the fibres to escape! Plus, a few millimetres of board wouldn't stop anything but the very highest frequencies - and those have already been absorbed by 3 layers of rockwool. Sound wise, it doesn't make a difference.
That's a great idea, thanks for sharing. I'm thinking of building the same with the BILLY bookshelf because I have a very low ceiling. Quick question: Why did you cut these card strips? Couldn't you just staple the fabric on the interior wood?
Hi thanks. I guess I just wanted to make sure the fabric didn't tear in the long run. It might work fine either way
They are particle board. I.E. - not staple friendly and would most likely chip-out and not hold.
Could this be done using smaller width size cabinets as my area is not so big thanks for the video.
I guess so, its just very convenient using this particular shelf since the width is the same as standard insulation sheets - no extra cutting needed.
Amazing I'm literally starting to prepare doing that.
I'm wondering, though, finnsby's seem to be 9 inch thick. Isn't this too much for a bass trap? or is it ok?
more is better for below 200hz. the same distance air gap behind doubles performance if you have a faberic back
Maybe a dumb question but.. how well does this keep the fibers from escaping? Just asking because I know breathing that in is not very healthy. Great video by the way!
Thanks. Judging by other's accounts, a reasonably quality fabric should prevent fibers from escaping. You could always wrap the insulation in plastic, as extra precaution.
@@ProbablyStereoClubwouldn’t plastic stop the the absorption of base frequencies. Everything else I’ve seen says it should be breathable cover plastic obviously isn’t?
The plastic will have little to no effect sonically... in fact you could just use the material as is in the wrapper... not attractive but it would work. You could just make a cloth slip to go over it.That is what I plan to do. Then you don't need to handle the material directly at all! @@teapotwood2817
How is it working for you
what was the purpose of the card strips?
Im trying to work this out as well
To not tear the fabric when stapling it to the wood
i wish it was that easy
Should have wrapped the mineral wool in plastic due to potential floating micro particals (floating in your lung)! And, no, the bass trap effect would not be reduced, because of the plastic.
how much rockwool should i consider buying if i do this ? i don’t want to buy too much but buying too little doesn’t seem smart neither
For this one, I used 3 x 75mm thick rockwool and the sheets are the right width - so its just a matter of measuring (can't remember) the height of the shelf and do the maths.
Hey man, im thinking of making this! Do you think that it would be better if I put fabric instead of the regular cover on the back of the bookshelf?
I don't think it would make much of a difference at all.
YES!
Not enough; missing the airgap behind, doesn't cost anything and also just the corners isn't enough impact in most rooms, don't forget the ceiling corners! The mineral/glass wool used is perfect, not to dense.
When the mineral wool helped bass? never unless meters of thinckness.
I would not cut rockwool in my studio...
Agreed. But that stuff is fairly heavy and when combined with particle board shelves calls for at least one helper (and anyone who's not involved with recording rarely wants to help) to move them into the space and help with placement.
Why close the back ?
To avoid fibres from the insulation getting out in the room.
use fabric also so it bounces to the wall and back in the insulation . @@ProbablyStereoClub
Sorry bro, but putting the back wall back on the shelve is st00pid.
I apologise for my brutal honesty.
But don't parade your DIY designs here and try to gain popularity by showing how LITTLE you know about acoustics.
It's a solid bass trap, piss off.
I believe many people will be interested give it a try after watching this(at least I am). Maybe you can point out the flaws?
@@seanhuang5104 doesnt cost $600 or looks like it
looks terrible