Corner Bass Trap DIY - Acoustic Dampener
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- เผยแพร่เมื่อ 4 ก.ค. 2024
- I made this bass trap for the corner of my home studio to absorb some of the echoes and noise in the room. When paired with other acoustic treatments, this bass trap helps improve the sound in the corner of a room.
It uses mineral wool to absorb sound frequencies, and the ribs of the structure diffuse sound a little bit as well. This was a nice addition to my recording studio.
You can purchase the plans for this bass trap here:
www.bobswoodstuff.com/store/p...
The plans are fully illustrated and step-by-step.
Tools used in this project: (Amazon affiliate links)
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Arrow T50 stapler: amzn.to/3ncaw6l
Titebond Polyurethane glue: amzn.to/3rEt2a7
Diablo 10" combination saw blade: amzn.to/2NnxuIs
Diablo 8" dado stack: amzn.to/36IqZHS
DeWalt cordless drill: amzn.to/2CpsDQI
Ryobi impact driver: amzn.to/2CnvSZ5
DeWalt trigger clamps: amzn.to/2vtRQcv
DeWalt extra large trigger clamp: amzn.to/34KLsLJ
SawStop
My Website: www.bobswoodstuff.com
Instagram: / bobswoodstuff - แนวปฏิบัติและการใช้ชีวิต
Builds bass trap. Tests frequency response *without* testing bass response. 👌
@dangr123 They aren't just bass traps. They diffuse a bit and also absorb much of the nasty higher frequency echoes in the corners.
Yeah, I would have done a frequency sweep to A/B the resonances before and after.
Anyway, this doesn't seem to be for music, more for improving the space for voice for video, which the test does prove.
@@gordthor5351 it's supposed to be a bass trap, considering title of the video,so there's should bass test...
Lol
@@gordthor5351 What frequencies do you think are "bass" frequencies? The material he's using is only rated at absorbing 125Hz and above. Look at the bottom two octaves on a piano. What is that frequency range? Do you see a problem?
Super nice video quality and nice craftsmanship. I think the bass trap title is misleading though- bass frequencies weren’t even tested, and based on the little I know about acoustics (I have a home studio), that would not take care of low frequencies. I’m sure it did help with basic room sound reflection and build up in the corners though. Some who are less knowledgeable might go to the trouble to follow your design and discover it still doesn’t help their bass issues much. Looks like some other commenters made similar points.
The 3D modeling earns a subscription
Love your videos Bob, the 3D models blended with your real video was top notch, I wish others made videos like you. Great instructions and very intuitive. Great work.
Thanks Rajah!
I chuckle when you go from the 3d modeling transitions to using such basic tools, like string and pencil!!! Spot on!!
Thanks Christy! I like to mix it up.
I bought the crafting guide and built 8 of these diffusers for my studio. It is perfect. Gratitude!
I love it!
Good Visuals effects !!!!! :)
Thanks!
Stumbled across your video while perusing Reddit. Glad I did. Very educational, informative and we'll put together piece. The methodical and deliberate explanations of your workflow made it really easy to follow along. I learned quite a bit. Great job!
Thanks so much!
Another cool video from my favorite 3rd modeling Wood Worker. Kudos Bobbo!
Oh yeah.
The added diffusion strips make this a brilliant design.
Thanks! Originally I added them for structural reasons, but then I realized they were also good for diffusion.
I came here for the fishing secrets and left with an audio lesson. Guess I fell hook, line, and sinker.
Another Great Job Bob! The animations are so cool. And this is a project I wouldn't have even thought of but makes so much sense. Keep it up!
Thanks Dean! Originally I was going to make a quadratic diffuser, but the bass trap made more sense for this room.
This is the best diy basstrap video i ever seen! Thank u ❤
Simply beautiful! To quantify the bass trap effectiveness you'd need a calibrated mic and run some low freq sweeps on a subwoofer.
Thanks for the tip!
Super nice graphics bravo!
I am looking to adding bass traps to my recording area of my studio. Love your plans and design. Thanks
You're welcome!
Nice design and plans were reasonably priced. I modified them to make taller and deeper ones, utilizing the full 15-1/4" size of the rockwool that I purchased.
Now this is a great video!! Great explanation, excess mumbo jumbo and nice testing data :)
That was great video production and wood working!!
Well done!
Thank you!
Fantastic video. Thanks.
How wild! I saw your drill bit size video to see how big of a hole I should drill to hang my premade bass traps and was recommended this video. I thought I was dreaming LOL! Very well done on the design!
That is funny! Thank you.
Finaly a fancy one among many flat and bulky traps. Nice.
Thanks! I wanted it to look nice.
Nice project Bob!
Thanks Len!
Happy birthday Bob! Your vids are great! I don’t do wood working, but goddam you make it interesting. Amazing content
Thanks! I put a lot of work into the videos.
Another fantastic video - those transitions are SO smooth! And great tutorial. You know just the right amount of info to show. Kudos!
Thanks so much!
Great production
Thank you!
Fantastic video, great job Mr. Editor as well.
Thank you! I do my own editing.
@@BobsWoodStuff That's quite impressive, keep up the 'wood' work 😉
Top notch work!
Thanks Andy!
Edits are super nice man
Thank you sir! Wait til you see my new video about to drop today. I went next level with it.
Nice build bob!
Thanks Austin!
Hello Bob,
Congrats on the project and smart way of working that hides great experiences. See you. Big greetings.
Thank you!
@@BobsWoodStuff see you.
Great video Bob! I think I need one of these in my office to help with echo when recording podcasts
Thanks Grant! Yeah, this would be good for podcasting.
Nice. Thanks!
Your editing just keeps getting better! Nice simple project that yields good results, too.
Thanks! Always trying to improve.
Excellent. Thank you.
You're welcome.
Yeeeah you edition work Is great , cheers from México
Thanks!
Very nice video 👍
Thanks Jeff!
Your blending from video to your 3d model to 3d rotation back to video earned you a subscription!
Thanks!
Super sleek design and great video production levels. Thank you!
Thanks! And you're welcome!
this is so nice. can't wait to design my own house soon. stay safe and see you around!
Thanks!
TOP, EXCELENTE VÍDEO, BEM PRODUZIDO, PARABÉNS
Gracias!
The editing in this video is seriously next level. Great guide!
Thank you!
outstanding video. your attention to detail is amazing, in both the bass trap and the production.
Thank you!
Next level video editing bro
Thanks!
Great inspiration. Thanks. Also one CAN use some very very THIN plastic to seal in the mineral/fibreglass if worried about contamination, which does happen through loose weave material. Sure it makes a difference, but that difference is insignificant. Really.
Man, these transitions are awesome! 💥
Thanks Max!
Wow! Foam bass traps are really expensive and I think yours looks and works way better! There’re different materials and more mass. Extremely well produced video as usually, was nice to watch and plan the next weekend project.
Thanks! I'm very happy with how it turned out. I might make some ceiling panels with the leftover insulation.
Thanks for the concise and yet Informative video!
This is probably the one bass trap that really works and doesn't cost a ton in tools/materials to build.
Anyone have any thoughts around the design modifications required for filling a similar frame with activated charcoal instead?
Thanks! It makes the room sound much better. But I have been informed that it is more of a mid trap, fyi.
Great video Bob! I like the cool transitions? How did you do that?
Thanks! I use SketchUp for the 3D parts, and Premiere Pro to edit it into the live action.
I really like this design. I've done some 2'x4' panels with that same acoustic material but I wanted to take a stab at a bass trap and this looks promising. The editing with the 3d graphics was a nice touch!
Thank you! Most the homemade bass traps I found looked kind of droopy and bad, so I put a lot of thought into a design that would stay rigid and keep the fabric tight.
Hi, Was just wondering if having breathable fabric around it doesn't let some of the toxic particles from the mineral wool into the studio environment. If so is there any particular type of fabric you recommend using?
thanks for the helpful video!
@joaquincornejoofficialchan4874 The small particles are hazardous (not toxic, it rock fibers), however, the fibers are too big to fit though the pours in most (breathable) materials (such as bed sheets) and the particles tend to stay in place if not disturbed. I made some floor to ceiling 8' bass traps like these and I used a bit thicker material for the fronts and they work great. I wouldn't recommend using burlap or any other such material with rather large gaps, which would allow the smaller fibers fit through. It's hard to beat this shape of bass traps/diffusers for performance and aesthetics.
Diagonal stapling, Iwould have missed. Thanks. I am considering velcro, so that it is washable.
Good idea with the velcro.
Great video thx for sharing.
When it comes for the low frequencies, how well they perform.
Do you think it's better deeper ?
Also I noticed the panels on the wall.
Those would be for higher frequency.
How good are they compared to diy ruxol
2' × 4'. Thanks again. Hope to hear from you soon, because I will be making my room soon.
I haven't measured it specifically for different frequencies, but it makes that whole corner sound better in general.
The grey panels on the wall are good for reducing the echo on that wall. I try to treat all the hard surfaces with something.
I haven't tried a 2x4 panel with the Roxul, but I have some leftover pieces, so that may be a good project for the future.
@@BobsWoodStuff thx for replying.
Where did you buy those the wall panels.
I'd like to look in to them.
Also your bass traps are the niceness looking from any I've seen.
@@garyshirinian thanks. The wall panels are from Amazon, here: amzn.to/3nf7VJg (affiliate link)
@@BobsWoodStuff thx
Great, thx, why didn’t you do REW measurements ?
"Travis advised me to wear long sleeves" - is wearing short sleeves in the next frame... >.
Shh, don't tell Travis.
Can you provide a measurement about effective of your DIY bass traps? I think it good be nice for your growing channel
The clock on the quarter piece for the glue drying transition was clever af. This is the coolest tutorial video I've ever seen.
Thanks so much!
Great video. The attention to detail is very inspiring. The animations and editing are excellent. This looks very professional, well-designed and well-built.
I have a couple of questions/comments:
1. You made the notches for the ribs smaller than the ribs' diameter, so that the ribs protrude outwards of the quarter-circle sides, which gives an overall "bumpy" look with the fabric on. Why didn't you make bigger notches so that the ribs fill the notch completely and have a smooth finish?
Anyway, thank you for the video and keep up!
Thank you!
On the ribs, if I didn't leave them sticking out a little, the appearance would be round on both ends and the middle, and flat on the inbetween sections where the fabric stretches between the ribs. I wanted a more consistent look with flat facets going all the way up the bass trap.
@@BobsWoodStuff I understand. Thank you for the quick answer!
For some mysterious reason, my second question disappeared into oblivion. I wanted to ask whether a more appropriate measurement would be with some kind of bass instrument - a bass guitar, bass drum, brass instrument, etc. - because those produce a low frequency sound wave which is the main use for bass traps, to trap it. The clapping and hammering tests produce high frequency sound waves which are improved by the bass trap but are already treated with the existing acoustic panels on the wall.
Thanks again!
@@NadavCuky you are correct, something with a low sound would be a better test of the bass trap. I guess I was mostly thinking in terms of what type of sounds I would make with my woodworking videos.
Crack me encanto el video.
Gracias
Excellent video!
Could you tell me what is the total height of the bass trap? Thank you!
Thank you! The total height of the bass trap is 48-1/2" tall.
Does rockwool work just the same if sliced transversally like that? I'm suddenly struck by the though if doing a faux shoji (ando?) style lamp that's actually rockwool inside (and some white fabric instead of rice paper covering it), and just place it standing close to the wall. Heck, I could put some LED strips inside and do a tufa panel+lamp!
... Now I just need materials, tools, time and skill to do this xD
Yes, the rockwool works the same like this, but better because it is thicker than a sheet when stacked this way.
the video is kick@ss
Thanks!
looks like the bread box thing where you store your bread.
nevermind if the panel actually works, great production on the video! :D
This is major. One of the reasons I love making music, is the supportive community! Thanks for sharing
You're welcome!
Just FYI, I have gotten some comments that this is more of a mid trap than a bass trap. It does make the room sound much better though.
@Bob's Wood Stuff tracking Sir. Is a good frame to have. I read you need at least 6" for am effective bass trap. Wondering if I can use this frame for it.
@@palovibes This frame is based off a 10" radius, so it should work.
@@BobsWoodStuff i'll give it a try and hopefully tag you on the post. Thanks again!
What the best point in the room to install the bass trap- upper corner or lower corner? Or middle corner of the room? Thanks
The best place is upper corner or lower corner, but not in the middle. The corners are where the sound waves accumulate.
If the room is carpeted, I would put it in the top corner, since the carpet is already dampening sound that is lower in the room.
@@BobsWoodStuff Thanks!
Great tut. Unfortunately I don't have the tools .
I was wondering why the construction was so complex.. then I saw the channel name 😂 great work tho!
Small rooms don't have echos. They have reverberation and that's measured with RT60 times and that's a combination of all 6 surfaces.. 4 walls, floor and ceiling. With using hand clapping, that's a fairly narrow bandwidth around 2K Hz. Not exactly a "bass" frequency. I like to use the frequencies BELOW 100Hz as "bass" frequencies, as that's the bottom two octaves on a piano.
The second problem is that you're just stuffing an odd shaped "box" with building insulation and sticking it in the corner. Corners represent about 5% of the total surface space in the room, at best. Hardly enough to make a BIG differnce. It will make a difference, but not that much.
Building insulation is actually used for thermal insulation for inside a wall in a home to insulate the room from hot/cold weather and to retain a certain tempurature within a room. It can also be used in a wall cavity to reduce the amplitude of noise in the 125hz and above range. Again, NOT "bass" frequencies. Now, with "bass" frequencies, they are PRESSURE based problems and in small rooms, they create what's referred to as PRESSURE modes. In order to absorb low frequency pressure, you need something that is PRESSURE based absorption. Deep cabinets with a front wall that moves with the pressure and filled with a dense, porous materials are the best, those are called Diaphragmatic absorbers, and there's only a few on the market, or you can obtain build plans and make your own. I can point you to a company that sells build plans on the best ones on the market.
Mineral wool is more VELOCITY based absorption, and it's not really designed for music and speech. The absorption coefficient curves simply aren't really that great for music/speech applications. While it's cheap and it's widely used by some people, it's not really the best for low frequencies in the 100Hz and below.
If you want to reduce "reflections" or what you are calling "echos", that's a reverberation problem, that's a REFLECTION problem and you'll need two things. One, the right material and TWO, LOTS of surface coverage and I would recommend at LEAST 50% surface coverage in the room to get a VERY noticeable difference. I would suggest getting a high quality acoustic foam if you want it to sound good for music/speech applications, but if you just want to cut down the reverberations in the room in your wood shop, then you can do with whatever cheap material that's absorptive and you just make a bunch of panels probably in the 2inch or maybe 3 inch deep range and just do that.
Thank you for the detailed breakdown. I am currently using acoustic foam and moving blankets, and it seems to work for my purposes.
@@BobsWoodStuff FYI, not all acoustic foams are the same and they have varying performance. I’ve used a lot of direct brans of acoustic foam a the top bran, IMO, is Acoustic Fields. But it’s a little pricey. It’s denser and they have a uniform cell structure , and results are perfect for voice/music, if you want the best sonics. If your application doesn’t dictate studio or mastering studio quality performance, then what you’re doing should be fine; it’s just how much surface coverage.
@@BobsWoodStuff Are you building this acoustic treatment products for your wood shop or do you have a recording studio, high end listening room for a stereo/home theater?
@@Oneness100 It is just for a bedroom, which is sometimes used to film woodworking videos and record voiceovers.
Is the fabric enough to keep the glass fibres inside and out of your lungs? I think I'll add a sheet of plastic to keep them in.
If you are adding a sheet of plastic, then the sound will never get to the insulation and it might as well be a plastic block. It needs to be permeable.
This is mineral wool, not fiberglass, so it is arguably more safe.
There's really no wind in that room, so I don't think anything would blow the fibers around.
@@BobsWoodStuff ah, good stuff!
The design and the work is very nice but: the efficiency of the bass trap depends on its depth... so, using mineral wool, I think you would spare some time and some money by just placing a squared bass trap on you corner.
Dude you are so awesome. i wish i had the space to even use a table saw :(
Why did you use breathable cloth? Can I also use thicker cloth? What would be better
You want a cloth that will not deflect the sound. A simple way to test for this to to blow air through the material and see if you can feel it on the other side.
A cloth that is too thick will deflect the sound, instead of allowing it to pass through and be absorbed by the mineral wool.
@@BobsWoodStuff I see, thank you!
Nice DIY Bob. Thumbs up from a fellow creator 😅
Thanks Ethan!
Thanks for video, is so funny :) .. Why you testing by clap and jack-plane when it is bass trap? :D Why your wood plate is on left video comparison always claps and bouncing, but on after video not. Man you did not build any bass trap. Room noise? really? you zoomed the right section of some signal :D and I'm not talking about your randomly placed wood in frame called as diffuser, so much missunderstanding of acoustics in basic principles. But nice edited video. Thank you for giving me the confidence to do these things properly when :) (after i saw many videos like this) but you have nice skill, machines and practice. Good job.
Bro hammer 🔨 ? Base test ? Nice wood work though 😜
Hello. Is rockwool bad for health?
It is supposed to be healthier than fiberglass insulation, but you should still wear gloves and a mask while handling it.
@@BobsWoodStuff I wanted to do diy bass traps and panels for my control room..but am really afraid of the effects of rockwools..what other alternatives do I have?
Why would you build a corner loaded bass trap and not test with a subwoofer and REW? It would have been much faster and easier to build a flat wall mount 'poster' style that would do the same thing.
Musicians come here as musicians and leave as carpenters
Great trap! But it sounds more like a mids trap, than the bass one. I doubt it would have an effect on any of the sub-frequencies.
Thanks for the info! It seems to work well for that room, but I don't actually get any deep bass sounds.
@@BobsWoodStuff I already have a lot of stuff in my room so there's close to no echo. But it's tougher with the lowest frequencies because they have high wavelength and the actual bass traps look more like a box with some quite big holes. I was really surprised when I found out that most of the so-called "bass traps" sold are made out of foam and only affect the high frequencies, so it's like a scam. The sound becomes only muddier because all the high frequencies immediately disappear while the lows can get overwhelming.
I have big Yamaha tower speakers, smaller monitors and Roland Katana Amp. The problem appears if you use a big enough subwoofer or speakers in a small or medium-sized room.
@@NonsenseTreasure In addition to the corner trap, I have moving blankets hanging on two walls (1 inch from the wall) and a bunch of acoustic foam. It works well for recording vocals on a condenser mic.
@@BobsWoodStuff Imo blankets hanging on the walls and ceiling (clouds) are one of the best options for recording.
Foam can be enough for recording vocals, acoustic guitars and so on.
Bass traps are mainly needed for mixing/mastering and for using a big sound system with big speakers.
You're clearly a very skilled carpenter, but why you'd think clapping or scraping is a good test for a bass trap is beyond me. It's function is to reduce the decay of very low frequencies
Nobody can do it like you. I feel sad after comparing my shitty DIY trap with yours haha
Thank you! I have a lot of woodworking experience, which helped with the design.
Id say that doesn't work at all for frequencies below 100hz. as it has NO air tight cavity behind..
nice bass traps but the frequencies you are tesing them on are not really what their true designs are supposed to control..
leave the guy alone, his clap goes down to 30hz
sounds like plumbus tutorial
Not a bass trap, a high and mid freq trap. Not near thick enough to catch sub bass freq
Hand claps and using a hammer are NOT low frequencies, so I don't know why you are using sounds that don't have low frequencies in your testing..
Bob you didn't show us how bass is dampened. Clapping is not bass. Reflections is not bass. So you didn't measured anything
I think no difference
Sorry, BUT WHERE IS A BASS SOUND TEST - in a 20-200 Hz range?? Clapping with hands and talking are not bass frequencies ;)
Save your money, this is a stupid design.
Get a design for a diaphragmatic low frequency absorber.. They will absorb a LOT more of low frequencies to remove Axial mode room problems. Also don't use corner "bass traps". they are only treating maybe 5% of the surface of the problem isn't really doing all that much for low frequencies at all..
The definition of an Axial mode is the mode between 2 parallel surfaces, NOT parallel corners. So you want to treat the actual wall, ceiling, surfaces as much as you can..
Also, low frequencies under 100hz are pressure based, not velocity based, so you need some form of PRESSURE activated absorption, hence a diaphragmatic process. They do work the best on a per square foot basis and you'll need a lot of time since most walls and ceilings aren't designed to absorb low frequencies below 100hz. Now, if you redesigned and built your room with walls, ceiling and even the floor with a good design, then you wouldn't need low frequency absorption in the room as the wall construction would do that for you..
What’s the materials used for this diaphragmatic panel?
Why do Illustrators like the above - clap their hands to demonstrate "BASS"???? Hand clap is mid-high frequencies. Good for a noisy restaurant.