Questions tagged [sound-isolation]
The sound-isolation tag has no usage guidance.
24
questions
1
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2answers
50 views
How to calculate the density of foam required to cushion impacts?
I have a treadmill desk and my downstairs neighbour is complaining about the noise. Specifically the noise made by the impacts of my walking. Unfortunately the floor of my flat is not concrete but ...
1
vote
6answers
82 views
Reducing vibration coming from the floor while at sleep
having an interesting issue here. Imagine you live above some mental dude who starts a vibrating device and frames it against its ceiling - my floor (for your imagination, see example of this at the ...
0
votes
0answers
31 views
Why are there no mufflers for water plumbing?
People who live in multi-unit apartment buildings often need to be careful not to bathe late at night, because their neighbors will be able to hear the sound of the water going through the pipes.
As I ...
3
votes
3answers
293 views
Will a short brick wall help shield against bass or will it go around?
I have a noisy neighbor (unreasonable and hostile) generating low frequencies that are disturbing. I'm at the point where I realize I need to just build some kind of barrier, and also buy better ...
1
vote
1answer
56 views
How can you maximize air flow through a sound maze in a HVAC transfer grille?
My house has several transfer grilles like this:
Except they have no baffles inside them, so light and sound come through into our bedrooms quite easily. I'd like to put in a sound maze like this to ...
0
votes
0answers
29 views
Formula natural frequency double wall
I started with a book (pdf see here: https://www.pdhonline.com/courses/m104/m104_new.htm)
In this book there is the following formulla found
$$f_0 = 170 / \sqrt{M_1 * t / (1 + M_1 / M_2)}$$.
The ...
1
vote
5answers
559 views
What can be the reason of the constant 50 Hz sound in my home?
I am suffering from a strange hum in my home. I have just bought my home and living in 3 months. A month ago I've started to hear a humming noise. Then, I recorded the sound and looked at its ...
1
vote
1answer
100 views
What is tonal masking?
I have checked the definition of tonal masking on Wikipedia and google but I saw the definition of sound masking and auditory masking.
Auditory masking
Sound masking
But I want to know what ...
1
vote
0answers
20 views
Latest methods for noise insulation for walls and ceilings?
All I know is for noise insulation, building a party venue for example, inner wall spacing should be about 20cm. Though I don't see how that helps with anything but one frequency and It's harmonics. ...
2
votes
2answers
76 views
Will a 3-wall acoustic barrier work or will sound go around?
I have two heat pumps directly outside my house and they are noisy so I am considering the viability of using a sound barrier to block the sound. The acoustic barrier itself will definitely absorb and ...
0
votes
1answer
51 views
Using the bitrate value on a calculation is causing contradiction, why?
Do you have any idea on why the Calculation 1 below doesn't match?
Reference:
Audio buffers: frames, samples and channels
...
1
vote
0answers
230 views
What are the limitations of active noise cancelling?
Let´s pretend there is a source of homogenous noise. Up to which decibel level could active noise cancelling be viable to decrease the volume of this noise significantly? Is it like 10, 50, 100 dB?
0
votes
1answer
46 views
How well would viscoelastic damping work between isogrid- or honeycomb-faced constraining layers?
I'm considering doing some experiments with 3D-printed surfaces and sound transmission with constrained layer damping. I've also been thinking about using isogrid or honeycomb interior surfaces, ...
0
votes
3answers
67 views
Microphone angled waterproofing
We are working on a mounted screen design that will have microphones at the bottom of the screen housing. The screen housing will be sitting at a 10.5 degree angle. So we are worried about water ...
0
votes
1answer
2k views
What is the best thin/light material to kill/absorb sound? Sorbothane?
I am currently building a box filled with electronics and I now look to isolate the sound a bit with the lightest and best material out there.
What I am looking for is a thin, lightweight and very ...
2
votes
2answers
87 views
How can I kill the sound as much as possible in a rounded box? Acoustic panels/other option?
(I posted this in the Sound-Design section but got advised to post here instead).
I just purchased a 3d printer and I am working on a product with a box that has a hole in the bottom and the top. ...
2
votes
1answer
209 views
Can ultrasonic sound pass through solid medium?
For my electronic project, I have been searching the internet for a non invasive flow meter that does not require disassembly. I have found an ultrasonic measurement technique that use the clamp on ...
2
votes
1answer
77 views
Is my procedure applicable to make a room soundproof? [closed]
Recently I found it essential to make my room soundproof and for this I have worked out the following way:
The walls of my room are made of cement. I want to add two glass layers (of different ...
1
vote
1answer
23 views
Selection of an isolation table
I need to conduct nano-indentation within a glovebox of a split-test cell for battery testing. I know that vibration may be a potential issue, and I should probably buy an isolation table. However, I ...
6
votes
2answers
2k views
What device is this, and how does it work?
There is this device I saw when I was a child at a big music store, that makes me curious.
It was meant to listen some CDs to try them out before the purchase.
You stand under a bell-shape kind of "...
2
votes
1answer
65 views
How to simulate sound emission properties of the human body?
Is there any way to simulate sound transmission properties of the human body with solid materials?
While there are several sound sources inside the human body (heartbeat, air flow, bubbles moving ...
1
vote
3answers
176 views
Why noise canceling headphones do not attenuate the signal itself?
Noise canceling headphones use a microphone to capture noise in order to cancel the same. The microphone will capture whatever acoustic signal reaches it. Since it is in the vicinity of the speaker, ...
0
votes
2answers
216 views
Most non-sound-conductive materials, especially when abutting conductive material
I was wondering what the most non-sound-conductive materials are, especially where those materials are abutting materials that are sound conductive. For example, imagine a long bar or block, and ...
13
votes
5answers
3k views
Are there any materials known to be sound-insulating but thermally-conductive?
Are there any materials known to be sound-insulating as well as thermally-conductive?
Cost is not an overriding concern, but preferably costing "reasonable amounts" and much less than national ...
