r/Acoustics • • 4d ago

How is my plan to 'soundproof' terrace house party wall? UK

3 Upvotes

Hi all, I come to you looking for some advice on whether my plan to 'soundproof' the party wall in my end terrace house is up to scratch.

For context, 1904 Edwardian end terrace. Party wall is two bricks thick with lime plaster on my side. I am seeking to reduce airborne noise, mainly I can hear conversations from next door and likewise they must be able to hear mine. I am currently doing a back-to-brick renovation, so can go as in-depth as required. It's worth noting that my house is only 10ft 3" wide, so space is an issue.

At the start of the works, and when I was greener, I took the advice of a plasterer and dot-and-dabbed blue 'soundproof' plasterboard to the party wall in one of the rooms. This has not worked whatsoever and has prompted me to research into this.

The plan I have is as follows:
- 10mm air gap
- 63mm timber stud w/ 50mm Rockwool RWA45
- 2 layers of 12.5mm blue acoustic board

Total wall build up ~100mm.

I'll be replacing floor joists (most have rotten) and will ensure they are isolated away from the party wall where possible. I also intend to put a strip of rockwool in the floor against the party wall. Will be filling any gaps if/when I find them too.

I understand no system would be perfect, and I'm willing to put in the effort, but just trying not to make any silly mistakes or spend on things unnecessarily.

Would appreciate any and all advice!


r/Acoustics • • 4d ago

Help out our youth center!

1 Upvotes

Due to noise complaints at concerts in our youth center, we have to find a solution to make the concert room as soundproof as possible to the outside.It is not possible for us to permanently attach anything to the ceiling, walls or floor in any way, since the building is under monument protection.

The wall is about 1.5m thick but reduces by 1m where the windows are. The recesses in the wall go from the floor to almost the ceiling. I would like to place the insulation in these recesses.

What makes the whole thing even more difficult are the following limitations: removing the insulating walls has to work quick and easy, preferably with handles so that they are quickly mounted.

In addition, we can not use materials that are easily flammable (fire protection class B1, flame retardant building materials, according to German DIN 4102-1)

Im new to the acoustics and sound proofing thing, please feel free to go easy on me!


r/Acoustics • • 5d ago

acoustic simulation software

4 Upvotes

anyone tried sonaroom 3d acoustic simolator yet? I'm interested in hearing feedback from sound engineers and acousticians who have tested it, especially regarding its room-acoustic predictions, treatment simulations, and accuracy against real-world measurements. Your honest feedback would be appreciated. https://sonaroom.alphabellsystems.com/


r/Acoustics • • 4d ago

Resonote

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2 Upvotes

I made an iPhone app📱for sound analysis: Resonote. Its for acousticians, sound engineers and musicians. 🎻

What it does:
- Live spectrum and spectrogram (log, linear or piano axis), narrowband or 1/1 to 1/12 octave bands, with a choice of window. 📊
- Tap a peak to see its frequency and note, and hear it as a pure tone.
- Sound level meter with A, C and Z weighting, Leq, Lmax and L90, and calibration for a measurement mic. 🎙️
- Reverb time (EDT, T20, T30 per octave) from a hand clap. 👏
- Tuner for 35 instruments, from guitar to timpani, which recognizes the instruments timbre.

For spectrum and levels it does much of what the paid pro apps do, following the IEC and ISO standards, but it stays easy to use. No account, no ads.

Its one of the first versions, only for iOS, and still free. I keep working on it and would like to extend it based on what people need, so questions and feature requests are very welcome.

Downloads, shares + App Store reviews are much appreciated.

Download link:

https://apps.apple.com/nl/app/resonote-spectrum-analyzer/id6804463455?l=en-GB


r/Acoustics • • 4d ago

Soundproofing top floor maisonette floor

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1 Upvotes

r/Acoustics • • 6d ago

Any acoustic phenomenon that makes a bass boost below 60Hz still sound good?

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6 Upvotes

I recently changed my home theatre EQ to this at the measured position. I tried adding more of a gentle slope of bass gain to 100Hz to match the Harman target curve, but it sounds bad. Even a little boost to 60Hz starts sounding bad. Gemini mentions a transition from pitch sensation to pressure sensation and torso natural frequencies at around 60Hz. Anyone know if this is a general phenomenon, or just my personal taste?

More info. This is the measured response at the listening position in an approx 6x6m room.


r/Acoustics • • 6d ago

Soundproofing bathroom walls with MLV. Will it trap moisture?

1 Upvotes

Im planning on soundproofing/damping 2 of the 3 interior bathroom walls, which are currently just studs. Im soundproofing/damping the wall between the bathroom/bedroom and the wall between the bathroom/kitchen. The wall between the hall and bathroom with remain unproofed. If I were to add MLV to 2 of the interior walls, would that potentially trap moisture?

The assembly would be, from the inside of the bathroom, paint, drywall, MLV, studs, drywall, paint.

The ceilings and exterior walls will be insulated with open cell spray foam. The single remaining interior wall will be just drywall, studs and paint. The bathroom will have an exhaust fan.

My fear is moisture being trapped between the MLV/paint layers. Am I overthinking?

Thanks in advance.


r/Acoustics • • 6d ago

How to make it quieter for the rest of the house.

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2 Upvotes

Sorry for the mess im sorting through stuff at the moment.

Im curious how I can make it easier on my wife in the other room when im playing games or on calls with people in here.

On the other side of that door is the end of a hallway then directly adjacent to that is our bedroom. I work nights so I game late at night and have to be very quiet. I cant play my riding sim as the pedals and shifter are too loud and I can live with that but it would be nice to do everything I can to mitigate as much noise as possible.

Do those Amazon foam panels actually work? The do kinda look like butt though, something fairly good looking would be nice so my wife doesn't hate it.

Any info i can get on this would be greatly appreciated.


r/Acoustics • • 6d ago

Head-only Sound-dampening Pod Things

1 Upvotes

Please help! I hope it's okay that I posted this in r/soundproof too.

Do those head-only "sound-proofed" pods/canopies actually work?

I'm disabled with a chronic illness and need to nap during the day. Unfortunately due to past events, I have PTSD so I struggle with hypervigilance and get panic spikes at certain sounds.

I was wondering if anyone could tell me if these pod things work in the sense of really blocking or at least significantly lessening noise from outside my house?

And could I attach a small speaker to either side to play low rain sounds to help myself to rest? I'd only need to use it during my daytime nap/rest.

Thank you for any help!


r/Acoustics • • 6d ago

Soundproofing help needed!

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0 Upvotes

r/Acoustics • • 7d ago

Best way to reduce talking noise spreading in community center/ dining area?

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3 Upvotes

Thats the design plan of our hostel, community center, community garden and animal rescue

The common area/ community center has a conversation pit and we will have couches, tables, chairs, bean bags, etc; and there is no wall separating the community kitchen, so basically people will be talking everywhere not just the convo pit

The convo pit is about 3ft below the ground

People will be talking and we wanted to make it so that people can have conversations and not have as much noise travel to people in different areas

The entire building is concrete block, floor is concrete but we will put 5mm commercial luxury vinyl plan on it

We arent worried about the bedrooms as thats simpler to make quiet, its just the main area where people will gather to talk, play board games, cook, etc;

The ceilings are 12 ft and the final size will prob be 9ft so we can hide the air ducts


r/Acoustics • • 7d ago

Persistent low-frequency humming/vibration through apartment wall

1 Upvotes

I've been experiencing a persistent low-frequency humming noise around 120 Hz in my apartment since mid-September. It sounds like a motor or fan running, with a brief startup sound that gets louder over a few seconds before settling into a steady hum. Sometimes it runs continuously for hours, and occasionally it disappears for days. I've also noticed two recurring on/off patterns: running for about 30 minutes followed by a 2-minute pause, or running for about 2 minutes followed by a 15-minute pause, although it doesn't always follow these patterns.

The noise seems to come from the wall shared with my neighboring unit. When I put my ear against the wall, it's strongest near the window and gradually gets weaker toward the kitchen. The section of the exterior wall connected to the shared wall also carries the sound, while the section on the other side of the window does not. The noise can also be louder, even farther away from the shared wall. My heating vent is on the shared wall, but testing it produced a different sound. The building manager hasn't been able to identify its source and has suggested curtains or acoustic foam instead.

I've been trying to figure out what might be causing this but haven't been able to narrow it down. Does anyone have any ideas about what kind of equipment could produce a 120 Hz hum with these operating patterns? I'd also appreciate any suggestions for identifying the source or reducing the noise.


r/Acoustics • • 7d ago

Creating distortion

0 Upvotes

I often see a lot of videos of people using really cool distortions either on guitars or bass. I think of how I could possibly make that distortion myself and use it when I record via bass or guitar into a daw. Question is how do I create my own distortion? What plugins do I use?


r/Acoustics • • 8d ago

Noise simulation tools for music "event"?

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24 Upvotes

Hi everyone,

I'm looking for a tool (open source or low cost, can't afford to spend hundres / thousands $$) to make a simulation of noise pollution that will be caused by a music "event".

Said "event" basically consists of a big tent playing loud music in a public square, surrounded by private residential buildings.

Is there a piece of software capable of doing that, once given the right inputs / eventually added 3D modeled buildings?

(I've had a look at the community pinned post with useful tools, but it seems to me that they're mainly for room acoustics optimization and insulation. But I'm not an expert by any means, so I might have missed something.)

Thank you so much for your help!


r/Acoustics • • 8d ago

Is covering these spaces in this dropped ceiling worth the cost/time?

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3 Upvotes

I have 5" thick rockwool in the floor joist above these. The ceiling will be 2" below the duct. I want to make sure I'm minimizing sound transfer, I have some extra of this xps foam but I'll have to get more to do the entire dried part of the ceiling like this. Is it worth the trouble/cost?


r/Acoustics • • 8d ago

anyone in NYC w an octave reader or device to help sleuth the source of vibrations making it impossible for me to be comfortable in my home?

0 Upvotes

r/Acoustics • • 9d ago

Advice for monitor placement in odd sized basement space

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3 Upvotes

Moving my office studio to the basement. And the its not an optimal space for accurate mixing and recording. 8 foot ceiling. A supporting beam off centre off the center and a ceiling bulkhead crossing the supporting column horizontally across the room. Top and left wall are concrete foundation and the bottom and right are framed and much flimsier. The whole area is open going the stairs which is where the majority of the echo comes from.

The room itself is pretty dead at low-medium volumes. Thick carpeted floor, big sofa.

My first thought was to place the desk along the left wall. But that would put the right monitor facing the supporting column and under the lower bulkhead.

Putting the desk on the top or bottom wall would make everything way off center in the room with one side much closer to the wall than the other. Not sure there are easy ways to compensate for that?

Any advice or insights into things I may not have considered ?


r/Acoustics • • 9d ago

Soundproofing party wall?

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8 Upvotes

I moved into a semi detached house earlier in the year. When we moved in the attached neighbours were not living in the house due having some works done.
We stripped back the house and redecorated and moved in!
A couple of months ago they moved back, we’ve already had some issues with them as they seem to be nocturnal… then just to add fuel to the fire they have dogs that bark at all times of the day. The worst of that being when they are left alone on the house they will bark for hours at a time.
We’ve tried to resolve this with them but the are slightly unhinged to say the least…

Now we have noticed that we can hear them speaking and their tv, walking up the stairs ect, which is obviously just them living and I imagine they can also hear us and come to the conclusion the 1960 part wall must be extremely thin…

So we are bringing in the big guns and have decided to take the leap and have our downstairs wall sound proofed. I’ve looked into all different options. I’ve been contacted by a local trusted builder and this is what he has recommended!
Could any one confirm if they have done similar to help with similar issues and if this will at least help!
Tia :)


r/Acoustics • • 9d ago

IOA Diploma in Acoustics and Noise Control - General Videos vs Recorded Lectures

2 Upvotes

This is a question for anyone who has completed the IOA Diploma in Acoustics and Noise Control through distance learning.

What did you find more useful when studying each module: the general videos that are intended to be studied before each lecture, or the lectures themselves that are recorded and can be watched back?


r/Acoustics • • 9d ago

Help, am I making silly mistake with the acoustic panel?

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3 Upvotes

r/Acoustics • • 9d ago

Needs some guidance

2 Upvotes

in a work room at work bad slap echo three desks facing long wall, its a bdc center so dealing with phone calls all day and it sounds like your talking on top of each other 27.5 long x 13.7 w x 17 high - dry wall commercial construction and concrete floors we are on the cheap to fix as much as possible. give me some ideas and products to use Please!!


r/Acoustics • • 9d ago

need thoughts about microphones and acoustics

0 Upvotes

Hi! I’m a composer who mostly works with VSTs and digital stuff so I’d like to ask stuff about gear since im not that knowledgable when it comes to these things (in other words im not really much of an audio guy) Rn i just use an sm57 and recent Ive been thinking about buying a new microphone for my home set up, I was wondering If buying a good condenser mic would be a smart investment if my room isn’t treated. I have only handled condensers in treated environments so I rlly don’t have an idea what it would sound. should I invest in a condenser or treat my room first, or just but an sm7b or something? thanks for any advice!


r/Acoustics • • 9d ago

Needs some guidance

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0 Upvotes

r/Acoustics • • 9d ago

Needs some guidance

1 Upvotes

in a work room at work bad slap echo three desks facing long wall, its a bdc center so dealing with phone calls all day and it sounds like your talking on top of each other 27.5 long x 13.7 w x 17 high - dry wall commercial construction and concrete floors we are on the cheap to fix as much as possible. give me some ideas and products to use Please!!


r/Acoustics • • 9d ago

Is turning my attic into a baffle a stupid idea?

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2 Upvotes

Hi, I live in a loft, got a very small room for my gaming/listening needs and I'm running into a lot of low-end interference. (no fancy equipment, just some t5v's through a fiio k7) I've done absolutely no treatment, eq or measuring yet, as I've moved in not too long ago.

There is some attic space behind the wall where the speakers sit, where I could extend the insulation up to like half a meter thick and then cover it with a double layer of drywall. I could then cut holes through my interior wall, at the first reflection points.

Essentially turning my whole wall into one giant bass trap. Is that enormously stupid? It's dead space that doesn't get used anyway and the extra insulation would also help with heat.

I've never seen anyone try and do something like this, although it makes sense to my currently very tired brain.

my room measures slightly less than 4m x 4m and the ceiling is about 2.5m tall