Questions tagged [noise-reduction]

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2
votes
1answer
717 views

Can a motorized damper be installed inside existing ductwork?

My HVAC system consists of a fan, furnace, compressor-driven AC, and evaporative cooler. The problem is that there is a large air volume used only by the evaporative cooler that is generating a lot of ...
2
votes
1answer
80 views

Home theater acoustic: How to calculate the required volume of a Helmholtz absorber to reduce reverb [closed]

I would like to fight a resonance with a Helmholtz absorber in a room with a volume of 97 cubic meters. I'm building a home theater in a room that's 9.2m long (11 x 3.3 x 3.2). In the beginning I had ...
0
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0answers
34 views

Outdoor Ac unit causes home cinema to hum

The design of my new home placed the outdoor ac unit of my ducted system right outside my home theatre. I love my new house but this is really bothering me as it makes the home theatre feel like an ...
0
votes
2answers
281 views

How to reduce ear splitting intercom noise?

My landlord replaced our fancy intercom system to a cheap one, I am guessing because of maintenance. The new one does not have any controls and I am trying to reduce the noise of the buzzing or, if ...
-1
votes
1answer
45 views

Tips for avoiding floor impact noise [closed]

We had a 2-story extension built, complies with earthquake code in Oregon. It only has a sub-floor right now but the impact noise from the bedroom to the kitchen downstairs is shocking. The final ...
5
votes
3answers
109k views

How can I stop my radiators "clicking" when they're turned on or off?

I have a central heating system on a timer, and whenever the timer turns on or off, for around ten / fifteen minutes, some of the radiators in my home make regular clicking noises, kinda hollow-...
1
vote
2answers
98 views

Loud brass valve - how to make it quieter?

I have a 0.5hp pond pump, powering my backyard water features. My pump is actually very quiet - quieter than the natural sound of the running water, so you don't notice it. The pump circulates 960 ...
1
vote
1answer
76 views

Using Quietrock drywall AND Rockwool Sound Insulation?

How much additional noise reduction can I get by combining Rockwool sound insulation with QuietRock drywall? Or does one render the other moot? I'm looking to add some noise reduction to an unfinished ...
1
vote
1answer
97 views

New floorboards upstairs now sounding drum-like when I walk on it. How do I add sound proofing after gluing the panels in?

In an upstairs bedroom, super squeaky tongue and groove planks were removed, and large panels were put in. I used that expensive tape on the joists, the panels were all cut to fit with tiny gaps by ...
-1
votes
1answer
117 views

Sound proofing a panned floor joist return run (basement apartment)

I'm building a basement rental unit in our home. We'll be living upstairs so I'm doing my best to sound separate the upper and lower units. I'm using a seperate hvac system for the basement (baseboard ...
1
vote
1answer
2k views

Mystery constant, fast, and barely audible vibration in private home

I recently moved to the top floor of a three story home that is near an infrequently used express track (primarily on weekends during construction on the local line/once or so an hour). A train ...
0
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1answer
49 views

Keeping out street noise

While I live on the 7th floor, the noise coming from street level is significant. Small motorcycles with their mufflers taken off race by all day long, constantly, and even at this level they can be ...
5
votes
4answers
2k views

What underlayment should I use to reduce traffic noise under a hardwood or bamboo floor?

I'm in the process of renovating the 2nd story of my New England 1.5 story cape-style home. New OSB subfloors are down with Liquid Nails and deck screws over 5 weeks ago. I'm on to flooring now. I ...
2
votes
4answers
7k views

Constant humming noise in house

I'm looking for ideas on what might cause the very deep hum I hear in my house when it's quiet. It's been present 24/7 for many years. When I'm alone in the house and nothing is turned on it's ...
0
votes
2answers
1k views

Sealing middle of sliding window with portable air conditioner installed

In my bedroom I have a one hose portable AC unit, because my only bedroom window is a sliding window. Currently, I set up the window kit in the day and take it out before bed. The reason for this is ...
-1
votes
1answer
177 views

Fix noisy washing machine spin cycle

I have a Whirlpool WWDC9440 Freestanding Washing Machine which I've had for 4 years. Recently (or gradually as I can't remember a step change) the spin cycle has become very noisy with the vibrations ...
1
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0answers
16 views

Improving HVAC post Remodel

We are living in a house that was originally built in the 80s with a gas furnace and forced air. Prior to our purchase, the house underwent a significant remodel including the addition of two rooms ...
0
votes
3answers
2k views

Why don't heat pumps run for a bit BEFORE starting the air circulation fan?

I'd like to think I understand how heat pumps work decently well. My home has one plus electric heat, which I try not to resort to because heat pump is more efficient, if slower. When a traditional ...
1
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0answers
39 views

How to reduce the noise from a kitchen to a bedroom?

What are some ways that I can use to reduce the noise from the same apartment of a bedroom? The room is one door and wall separated from a shared kitchen, which is sometimes busy and noisy. I'd like ...
1
vote
1answer
788 views

What could be the source of a tapping type sound coming from my upstairs air ducts? [duplicate]

We bought a new house a few months ago. I do not recall hearing this noise in the summer, when the AC was running, but then I wasn't in this room that much so I am not sure if it was happening. We ...
7
votes
5answers
13k views

How can I stop our duct work "pinging" at night?

I'm in Canada, and our home is a bit older, ~20 years, and the duct work seems to be making a rather loud "pinging" noise at night. I assume this is due to colder weather in general, and the hot air ...
2
votes
2answers
908 views

Cover & sound-suppression for doorbell transformer in utility closet

This transformer is installed in the utility closet of a 1970's condo. Notice the wad of cut paper sheets pinched between transformer and the wall plate. This is an attempt at halting a low-tone ...
3
votes
3answers
6k views

Vacuum Breaker Valve on Hose Bib Humming / Noise

I have one of these vacuum breakers on my outdoor hose faucet. Every time I turn it on, it creates a loud noise in the form of a hum or drone I can hear throughout the house. While I have been able ...
1
vote
0answers
783 views

Soundproofing cat door

We're getting a cat next week and we'd like to place the litter box in the cold room. There is just one catch: there is a super-loud dehumidifier running in that room and it would drive us crazy to ...
0
votes
1answer
105 views

How do I identify and fix a buzzing noise in my commercial freezer?

I have been using a second-hand TRUE commercial freezer for almost 13 years for my home catering business. It has been making a buzzing noise since yesterday. How can I identify the source of the ...
0
votes
2answers
687 views

how To Silence a Loud PTAC AC Unit?

I moved into an apartment with a loud (and somewhat not so cooling) PTAC in-wall AC unit. Each room has its own, a total of 3. The land lord is super cheap and only replaced the 8+ year old unit in ...
0
votes
1answer
573 views

Soundproofing around water softener

I'm trying to come up with options for soundproofing around our water softener (and the mechanicals that go alongside it - not including water heater). Currently when it goes through it's regen cycle, ...
4
votes
2answers
16k views

Means of adjusting fan speed on Bryant gas furnace

My home is heated by a Bryant 359AAV furnace. The thermostat controls and indicates whether the fan is ON or OFF, but the furnace has a four-speed fan. I believe the installer set the fan on "HI" and ...
0
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0answers
36 views

What can I put under a rug to minimize impact sounds?

We want to minimize impact sounds for our downfloor neighbots from one room. The floor surface is laminate, we don't know how the exact build of the floor but assume it's wood since the house is >100 ...
3
votes
2answers
4k views

Reducing wind noise inside

Living in suburbs west of Denver, we sometimes have rather windy nights. Tonight it's blowing about 25mph from the west, which means mostly parallel to my bedroom window. The windows are about 12 ...
0
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2answers
175 views

What additions to an interior ceiling can reduce noises of creaking / pacing from apartment above?

I live in a UK apartment with the one above currently being used as an AirBnB (or something similar). The only noises I typically hear from the occupants are in the form of stomping, creaking of what ...
5
votes
2answers
3k views

How do I silence a creaking wooden spiral staircase?

We have a spiral staircase with 14 closed wooden steps. Most steps creak when you put your weight on them (or take it off). The noise intensity depends on where exactly on the step you stand. How ...
3
votes
2answers
20k views

How to address loud cold air return

The cold air return on my forced air furnace is too loud. While it is is tolerable, there is a noticeable sound of rushing air when the furnace is running (not a whistling sound, just a blowing sound)....
0
votes
3answers
116 views

Best style of toilet when there's a long run to the drain line

Is there a style of toilet that does better when there is a long (mostly horizontal) run from the toilet to the vertical drain line? It seems to clog every few months (I think there might be a corner ...
2
votes
2answers
2k views

How can I mitigate humming from a streetside electrical transformer?

I have humming coming in and I think it is from the green box on ground, electrical transformer, in the front yard. It also has a hum. I have reported to electric company, but I don't think they will ...
7
votes
6answers
2k views

Letting fresh air through a window without letting noise in

I live in an apartment and it's pretty noisy outside, so I usually keep my windows closed. It does get pretty stuffy inside though, so I'm wondering if there's a way to get air through the window ...
2
votes
4answers
6k views

How can I reduce outside noise inside my apartment?

I would like to reduce the outside noise from inside my apartment. Outside, of my apartment is the hallway, and it can get noisy. I was thinking about placing felt pads on my door to reduce the noise....
0
votes
2answers
185 views

Is there a way I can soundproof an exterior apartment door from outside noise?

Its made of steel but hollow (though I'm not sure if completely hollow or if it has divisions like cells) with zero sound absorption. I already weatherproofed it with foam strips, but even then every ...
2
votes
5answers
35k views

HVAC supply vent noise: how to eliminate the whistling wind tunnel?

Every time the heat turns on (rented house), we are getting choked with too much dry hot air in our small room. When I try to close the supply vent it produces a really loud whistling noise. I either ...
0
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0answers
40 views

Noise transmission characteristics of dome structures?

Is a dome structure (e.g. geodome or binishell) more or less likely to transmit inside noise to the outside world, compared to the usual parallelepiped structure, at equal other conditions (same ...
3
votes
1answer
275 views

Reducing noise from hardwood floors

We have a ranch (single-story) house with hardwood floors on most of the ground level. The basement below this level is finished, and is where I work out of at home. We have kids that like to run ...
0
votes
2answers
76 views

Noise insulation of apartment right above noisy pub

How good can you isolate an apartment that's right above a very noisy rocker's pub? Could we install a thicker floor, or would the noise go through the walls anyway? What material would work best ...
0
votes
1answer
578 views

Isolating a workstation located in an open space office

I have a large room in my house, which I use as an open space office where several people are working on their own desk (see image below for an idea of how it looks like). Several persons make many ...
2
votes
2answers
352 views

Should I Insulate Between Floors to Reduce Noise?

We're in the process of turning our large unfinished attic into a bonus room and bathroom. Originally the attic floor contained the insulation that kept the house warm. Now we'll spray foam the ...
5
votes
2answers
832 views

How can I mitigate low frequency reverb in a bedroom?

Outside my bedroom window, there is a store air conditioner which runs 24/7. It's noisy in general, but closing the window takes care of most higher frequencies. My issue is with a specific low ...
3
votes
3answers
3k views

Eliminating ticking noise of pipe in wall

I know that the ABS main stack in my home is not rubbing against the floor or attic plywood openings; it is rubbing against the drywall in a interior wall when the pipe expands with the use of hot ...
2
votes
0answers
95 views

How do I stop the ticking noise coming from my furnace duct? [duplicate]

I've had some HVAC people here to look at the ticking noise coming from our furnace duct. One of them installed a brace on the piece in question. This seemed to make the ticking less frequent, ...
0
votes
0answers
116 views

Best sound-proofing techniques and recommended sound-absorbing materials?

This is fundamentaly a question about soundproofing and sound absorbtion. When working this project I've realised I don't understand the concepts as much as I though I did. I basically set up a shelf ...
1
vote
1answer
735 views

Lessen noise from adjacent room

I have a housemate who tends to snore during the night. Since our rooms share a wall, I tend to hear it. We live in an apartment building made from concrete panels. I'd like to do some basic ...
3
votes
3answers
10k views

Difference between 36 and 42db of noise isolation?

I do want to install various soundproofing improvements in an apartment, but when equipment and materials indicate the level of isolation, I really cannot judge at all the difference between them. I ...