Hi, I'm mixing in a small room where I'm getting a very loud room mode at about 165Hz. I'm fairly certain it's from the floor to the ceiling. Here's my question - they are both made of wood. Ceiling is cedar tongue and groove and floor is old pine of some kind. If I put up something made of wood on the ceiling, with boards at varying angles, would that scatter this frequency? Everything I'm reading is saying that lower frequencies like that aren't affected by a 3/4" piece of wood, but if that's the case how come that thickness of wood is creating the room mode in the first place? The ceiling is hollow (it's an attic with a pitched roof and a flat section of tongue and groove, leaving a hollow triangle above it).

I made these DIY acoustic panels, but some of the fabric on the back is loose like this. Duct tape doesn’t stick to the backing material.

What’s the best way to secure it? Fabric glue, hot glue, staples, or something else?

I’m not very good at DIY stuff as you can see, so I’d prefer a simple solution if i can :)

Hey guys! Looking for a bit of advice with my studio setup.
I’ve recently moved into a new loft-style apartment, so as you can see from the photos, the room is a bit of a funky setup with the sloped ceiling and wardrobes.
I’m running Adam Audio A7Vs, but I haven’t had the chance to properly calibrate them with Sonarworks SoundID yet, so I’m currently trying to get the room itself as good as I can before doing that.

I’d love to hear your thoughts on how the shape of the room and the wardrobes might be affecting the sound, and where you think I’d get the most benefit from adding acoustic treatment. I mainly produce House/Disco/Electronic.

I’ve found some of these wooden-framed acoustic panels for sale locally and was wondering what you guys think about putting one above the listening position on the angled ceiling/wall. I’ve included a ChatGPT mock-up as the last photo to show what I mean.

Would this actually be useful, or would I be better off putting the panels somewhere else?
Any advice would be hugely appreciated!

Cheers

Have a very large main area and need some to add some sound panels. Panels are pinta acoustical 2" panels mounted to a 3/8" plywood backer. Frame is 2" x 2" glue together with custom brackets. Exterior is 4" x 1" pine boards stained black.

Hi there, i'm entering the room measurements world to make an acoustic treatment to my room. Today i made my first test with REW, i'll leave the photos here.

Can someone help me figure out better how to read those diagrams? I have an honest understanding of the acoustic concepts, but i never had to take acoustic decisions by deducing info from the graphs.

The room is a rectangular space measuring approximately L11.58 ft × W8.92 ft × H9.02 ft ( or 2,72 m (W) × 3,53 m (L) × 2,75 m (H) if you prefer meters).

Any help is much appreciated!

Can somebody help me? I have been annoyed by intermittent buzzing noise from above the ceiling in my flat.

Audio link:

https://youtu.be/y2Q-K2ZuFgg

- My room is on the first floor of three-story flat in Japan.
- The noise is intermittent but present all day, like, buzzing for 3 hours and stops for 10 minutes.
- The frequency is 100Hz. In my location AC frequency is 50Hz.
- I feel the noise is coming from a certain 1m x 1m area near the wall facing outside.
- The neighbours above and below does not hear the noise in their rooms. I asked them to stop their ventilation fans as experiments but nothing changed.

Neither the landlord nor I cannot find the source. He says "there's nothing we can do about this mysterious noise, so you'd better go along with it 😎", to my disappoint.

Hey folks,

So I'm finally getting around to setting up a TV/media room. The room is relatively small (8 X 12 feet). I live in a old house, and this is on the second floor.

I want to reduce the amount of sound that travels downstairs. So the first thing I've had in mind is to put an area rug that pretty much covers the entire floor. But another suggestion that I hear was to add another layer of Mass Loaded Vinyl underneath that rug.

Now I know that it is nearly impossible to completely isolate the sound given the nature and position of the room. But just reducing it any amount would help greatly.

And for that purpose, will the MVL help at all? Or does it do more harm than good?

Thanks!

Layout in the image. Room is about 10 m², roughly 4.5 x 2 m.

I work in this room all day, game, and I'm on voice chat a lot, so I get louder than normal talking pretty often. I also record spoken voice 3 to 4 times a month (SM7B + FetHead into a Scarlett Solo 4th gen), and about once a month I record myself singing.

Two problems:

1. The long wall behind my desk is shared with a neighbor. It's drywall, kinda hollow when you knock on it. I want to reduce how much they hear so I don't annoy them (I know I can't eliminate it).
2. The door is wood with a small gap underneath, and directly behind it is my apartment's front door, so anything getting through goes into the stairwell.

Budget ~300-400 EUR, nothing permanent or structural.

My uninformed plan was: rug, some acoustic foam panels, a seal under the door, maybe acoustic foam on the door itself. Is that the right direction, or am I about to waste money?

My guess is that this mostly addresses the echo in the room, which would help the recordings (if even that, idk), but does nothing about the neighbor, which is the daily concern. So how would you split the budget? Is 300-400 EUR even enough to make a dent in the neighbor problem, or should I accept that and put everything into the room sounding better?

I am trying to reduce the sound from this duct and vent for a home theater setup. Current plan is essentially wrap it in a framed bulwark with 2x4s, drywall, and insulation. Don’t know what to do about the vent without changing the flow calculations. Thoughts? Thanks!

I have a fairly large, industrial embroidery machine, that's operated pretty regurarly. The issue, however, is that the room it's in is a club room, and as such it houses everything from embroidery prep work to generic social activites.

It's a mid size room, about 3m by 8m, most walls are reinforced concrete, but the walls/roof around the machine are false plasterboard walls covering piping etc.

To cut to the chase, I need to reduce the noise of the machine in other parts of the room as much as possible. Sadly, the better and more obvious options such as moving it to another room or an air gapped wall are not an option.

The current plan of attack is to install studio foam on some walls, and install a heavy curtain (details below) in place of a current one to isolate it as much as possible.

The curtain is planned to be 2 layers of denim, and a layer of fleece on the machine side, coming out to just above a 1000g/m². The idea is that the denim is heavy (and cheap) and helps stop the sound spilling over, and the fleece with it's soft and porous surface should help absorb some of the sound instead of bounce it back.

But some questions arose:

1. Am I right in thinking, that making the curtain wavy even when fully extended (ie having a curtain well wider than 3m) would make it work a little like the geometry of foam in that it scatters sound more, as opposed to a straight curtain which bounces it back more? (And I suppose it'd also increase surface area)

2. Is my idea about fleece helping to absorb a little sound even viable? Because it's porous and internally similar to foam. I'm talking a fleece liner material, not some ultra thick purpose made material of course. (I'm not sure if I can include a link to it)

3. Maybe it's trivial, but is the core assumption, that heavier curtain=better soundproofing even true?

Sorry for the winding post, just wanted to give all the info and thanks to anyone who replies.

My neighbor's AC runs non-stop and they don't intend to fix it. I'm sensitive to noise and have been watching tv wearing noise cancelling earbuds. It is directly next to my living room window in a 3 room apartment, there is no escape.

I'm considering getting outdoor rated acoustic panels and placing them around my window. Would that work, or is there a better option?

Thanks!

Hello! I am having an issue regarding a low frequency humming noise in a bedroom in my apartment that only happens at night. It’s been going on for almost two weeks now and it’s very inconsistent time-wise but very disruptive. It’s hard to explain but it’s the kind of noise that’s so low of a frequency you like feel it in your head and it’s been causing a lot of sleep deprivation and headaches… We’ve reached out to the landlord who is basically ghosting us saying he doesn’t know what the issue could be. We have a theory it’s some new appliance/ac unit installed that’s tripping something to cause the hum? I also want to mention there was one night i turned our whole power out via breaker and the humming was still going on.

We’re unsure of what the next step is to take, the landlord is basically unresponsive and his only action was sending some guy with no equipment or anything to stand in the room and say he doesn’t hear anything when both me and my girlfriend both clearly heard/felt it. I want to add that I live in NYC so if anyone has any advice for the noise itself and what to investigate or any legal advice to get our landlord off his ass to help it would be appreciated!
I’ll provide pictures of some decibel readings we took as well.

For input device I have the options Microphone (UMIK-1) and EXCL: Microphone (UMIK-1).

I’ve tried both and they give different responses under 50Hz and SPL level is also different. Test setup is dual SB Acoustics 8” sealed drivers with lowpass filter 80Hz.

Purple: EXCL: Microphone (UMIK-1)
Blue: Microphone (UMIK-1)

Which one is correct?

I've had this setup for 5 or so years now and the bass really dominates the sound in this space. Any suggestions in the $500'ish range?

To start I am a 12th grade Government and Economics teacher and know nothing about sound except what I've been able to pick up off of Youtube. I'm posting because the classes at my school are large boxes and have a lot of echo and I could use some help finding the most economic and effective solution to make it easier to talk in class. The dimensions of the room are approximately L25'xW20'xH15'. If more accurate measurements are needed I can find a tape measure.

The sound in the class is created by us talking and comes from all angles and I am wondering what the best way to reduce the echo in the class would be. Should I use diffusors, absorbers, a combination of the two and where would they be most effective since my walls are so high? I've thought about hanging rugs/tapestries to give it a more social studies vibe or using art from different time periods that hide rock wool or a similar absorber but am not sure if either of these ideas would be effective. Any help is greatly appreciated.

Basically, I got a massive stack of asbestos-free celotex tiles from a church remodel for the low low price of free. I’m thinking of using the tiles for some limited sound treatment, just to deaden some unruly echo in the room that soft furnishings and a rug won’t fix.

Has anyone used these before for sound treatment? Any recommendations for application?

Hi, for the past weeks I've been planning acoustic treatment for my recording studio.

Im attaching top down, front, back and side walls projections of my planned acoustic treatment, I was aiming for about 30% absorption but I'm happy with bit less that iv gotten.

room is 10x5 meters

I'm doing 57 (and a half) diy panels from 10cm thick 120x60cm insolation 50kg/m dense with 10cm airgaps from the walls (The rectangles with diagonal lines)

6 of the 1D QRD N7 120x60 difusors (The checkered rectangles)

4 superchunk bass traps from floor to ceiling 60cm wide

Under the drumset will be 2x2 meter thick carpet

The monitors are Yamaha hs8's, im keeping them 40cm from the front wall for sbir cancelation and the listening position is 2 meters from the wall.

I'm looking forward to hearing any criticism and ideas from someone with real life practical knowledge.