Soundproofing
- Thread starter wind79
- Start date
Personally I find that road noise is almost impossible to block out significantly on expressway tarmac, especially if you drive a low profile car. Or anyone managed to cut out road noise significantly, do share your tips.
Mine reduced significantly. As I said in my previous posts significant enough that people who have sat in my car before I did the soundproofing could tell that its more silent inside now. And I also feel that way. Blocked out enough road noise that my normal music player volume I decreased it by a few clicks.
Mine was a DIY soundproofing. What I did was just soundproof the whole floor and all the arches and the firewall. Stripped out the whole interior and any part that was linked to the outside of the car shell was covered with soundproofing material.
I've finally did the soundproofing for bonnet, firewall and flooring. The effect is quite good, i can't even hear my engine noise as much now. But the engine noise still quite audible when i rev the engine. I'll be chionging NSHW this weekend, let you guys know my review when I am back.
Sorry to be a bit of a thread-necro, but there is a lot of mis-information or just outdated information out there
Firstly, the noise itself:
is a vibration, it travels thru any medium (absent in vacuum due to absence of medium). Noise could travel through air (noise), hit a solid object such as metal car body (vibration), pass through it, and keep traveling through air again inside the saloon (noise).
Most of the traditional, old fashioned sound-proofing relies on simply dealing with the very last part of this process - it attempts to dampen the noise inside the car by trying to reflect / absorb sound waves coming off the vibrating car body.
In recent decade there has been major improvement in soundproofing industry, beginning with the realization that to deal with noise - it's just as effective to deal with vibrations of the car body, in fact more so.
Today, soundproofing of a car can obtain as much as 80% noise reduction.
You are correct about the sources of the noise - engine, tires on the road, air rushing past (mostly over the side view mirrors), rain, and other airborne outside (mostly traffic) noise.
Personally, i would not trust small brands - the quality of materials are... just not there, there are massive international brands that deliver the quality, even though may be more expensive than the 'local' brands (i personally just don't like melting rubber in the car)
For example Standartplast (StP) offers a huge variety of materials that deal not only with sound absorption / reflection but a lot more of vibration damping.
Different cars have different issues, some have built-in soundproofing. However none of the currently manufactured cars offer anything that deals with vibrations specifically.
For example, if you are looking to deal with road noise specifically - you have to realize that road noise (from the tires on rough tarmac or gravel) travels into the saloon of the car primarily as vibration. To deal with that issue - you have to deal with vibrations in the wheel arches primarily. There are materials and methods for that specifically, there are 2 types of materials here - some simply dampen vibrations by adding mass, others increase rigidity, which in turn shifts vibrations into higher frequency where it's far easier and more effective to 'kill' them with traditional soundproofing methods.
If you are looking to reduce noise from the rain, which we all know usually completely overrides music volume in the car - there is no point dealing with wheel arches - you have to address the roof of the car primarily, once again there are materials specifically for that purpose.
Engine noise travels into the saloon, once again, primarily via vibrations. Car bonnet should have sound reflecting materials, the firewall needs vibration absorption layered with sound absorption.
One of the things a lot of people do not realize as well - is that a lot of soundproofing materials out there also double up as a heat-absorption materials, which basically means your car is going to be cooler in the wonderful 40 degrees in a traffic jam in the middle of the day.
Sure, doing full soundproofing may not be as cheap as 100 bucks, and will add weight to the car (unless of course you're planning on racing in Singapore), but the level of modern noise reduction (up to 80%) and simple increase in resulting comfort is worth it.
Firstly, the noise itself:
is a vibration, it travels thru any medium (absent in vacuum due to absence of medium). Noise could travel through air (noise), hit a solid object such as metal car body (vibration), pass through it, and keep traveling through air again inside the saloon (noise).
Most of the traditional, old fashioned sound-proofing relies on simply dealing with the very last part of this process - it attempts to dampen the noise inside the car by trying to reflect / absorb sound waves coming off the vibrating car body.
In recent decade there has been major improvement in soundproofing industry, beginning with the realization that to deal with noise - it's just as effective to deal with vibrations of the car body, in fact more so.
Today, soundproofing of a car can obtain as much as 80% noise reduction.
You are correct about the sources of the noise - engine, tires on the road, air rushing past (mostly over the side view mirrors), rain, and other airborne outside (mostly traffic) noise.
Personally, i would not trust small brands - the quality of materials are... just not there, there are massive international brands that deliver the quality, even though may be more expensive than the 'local' brands (i personally just don't like melting rubber in the car)
For example Standartplast (StP) offers a huge variety of materials that deal not only with sound absorption / reflection but a lot more of vibration damping.
Different cars have different issues, some have built-in soundproofing. However none of the currently manufactured cars offer anything that deals with vibrations specifically.
For example, if you are looking to deal with road noise specifically - you have to realize that road noise (from the tires on rough tarmac or gravel) travels into the saloon of the car primarily as vibration. To deal with that issue - you have to deal with vibrations in the wheel arches primarily. There are materials and methods for that specifically, there are 2 types of materials here - some simply dampen vibrations by adding mass, others increase rigidity, which in turn shifts vibrations into higher frequency where it's far easier and more effective to 'kill' them with traditional soundproofing methods.
If you are looking to reduce noise from the rain, which we all know usually completely overrides music volume in the car - there is no point dealing with wheel arches - you have to address the roof of the car primarily, once again there are materials specifically for that purpose.
Engine noise travels into the saloon, once again, primarily via vibrations. Car bonnet should have sound reflecting materials, the firewall needs vibration absorption layered with sound absorption.
One of the things a lot of people do not realize as well - is that a lot of soundproofing materials out there also double up as a heat-absorption materials, which basically means your car is going to be cooler in the wonderful 40 degrees in a traffic jam in the middle of the day.
Sure, doing full soundproofing may not be as cheap as 100 bucks, and will add weight to the car (unless of course you're planning on racing in Singapore), but the level of modern noise reduction (up to 80%) and simple increase in resulting comfort is worth it.
kurrypokteh
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Can you share how much quieter is your ride now after sound proofing all 4 doors with double layer with SoundGuard?
I also thinking of installing there as I installed my Pioneer ICE there.
Personally I find that road noise is almost impossible to block out significantly on expressway tarmac, especially if you drive a low profile car. Or anyone managed to cut out road noise significantly, do share your tips.
In my case, i notice the best noise reduction came from sound proofing the following;
1. The wheel arcs.
2. The floor.
3. Installing strip around the door frame to prevent wind noise at high speed.
Door sound proof more for ICE.
Some people here has commented that sound proof the fire wall also helps very much in sound proof, and i hear same thing from some other kaki, but, i did not do this on mine, so, i cannot say for sure.
something
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where to get the material?...
kinbalight
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What's the average weight increase like to sound-proof (or dampen) 4 doors (single layer) + floor?
Honda Civic 1.6
Honda Civic 1.6
NovJoe
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NovJoe
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Depends on material. If using those stp kind of stick on mat, should be around 6 to 10kg kg for 2 layers, 4 doors.
Flooring if use mat type, add another 10kg bah. There's another spray on type which needs to let it dry overnight.
kinbalight
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Thanks for the reply!
Spray-on also can have sound-dampening effect ah? =O
Spray-on also can have sound-dampening effect ah? =O
NovJoe
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Yep, that one is expensive. Usually, people do for car flooring only.
Spray on effect is minimal, but it does helped in dampening sounds at wheel arcs. I tried 3M rubber spray bought from Autobacs... Reduced my tyre sound.. Maybe coupled with my quiet tyres.. Have a very much quieter ride at high speed...
If u are adventurous den try doing your car undercarriage... Helps prevent rust too... I dun have the proper equipment to jack up mine so din try...
If u are adventurous den try doing your car undercarriage... Helps prevent rust too... I dun have the proper equipment to jack up mine so din try...
I find noise pollution from roads really disturbing, especially when I'm trying to enjoy time in the balcony. My friend recommended to me this noise barrier fence product and it worked perfectly! It reduced noise from external areas, and looks good and is easy to set-up with useful blog and contact system. Thumbs up.
Do u mean u park ur car in the balcony?
Else ur in the wrong thread.
Floor soundproofing is most important for road noise.
Thanks! What’s the approx cost of it?
Couple of hundreds for entire flooring sound proof. Cost also depends on makes/ size and material used.
Start checking with car audio accessories shops in sg for price and material.
Put up your question in appended link if you consider doing it at JB.
https://forums.hardwarezone.com.sg/cars-cars-204/recommendation-reliable-workshops-jb-3637194.html
Start checking with car audio accessories shops in sg for price and material.
Put up your question in appended link if you consider doing it at JB.
https://forums.hardwarezone.com.sg/cars-cars-204/recommendation-reliable-workshops-jb-3637194.html
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