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Soundproofing 101: &#;Sound absorbing&#; vs. &#;soundproofing&#;

Did you know that &#;soundproofing&#; and &#;sound absorbing&#; don&#;t mean the same thing? Before we jump into our comparison of the most popular soundproofing materials, it helps to understand these fundamental aspects of sound and noise reduction.

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Sound absorbing materials are typically soft, fluffy products, that are mainly used to improve the acoustics within a room by reducing reverberations and echoes. While they can have a significant impact on the quality of sound within a room, they will not stop a sound from entering or leaving the room.

Common sound absorbing materials include:

• Acoustic tiles or soundproof foam panels
• Soundproof blankets
• Soundproof window curtains
• Soundproof wallpaper

Soundproofing materials, on the other hand, are designed to stop sound from entering or escaping a room at all. They achieve this by adhering to four principles:

1. Mass: Adding mass in the form of solid materials that are heavy and/or thick is one of the most effective ways to block sound, and thereby reduce noise transfer, particularly for airborne sounds like voices, loud music, or traffic noises and sirens. Examples: Additional layers of drywall, mass-loaded vinyl.
2. Damping: Damping is achieved using special compounds that convert energy into heat. In order to be effective, the damping compound must be applied between two stiff panels, such as drywall or plywood, which are then screwed together. Damping is particularly effective for reducing low-frequency noise. Examples: Green Glue, some silicone caulking.
3. Decoupling: Decoupling introduces gaps into the internal structure of a building, which makes it much easier to interrupt sound vibrations by forcing them to vibrate harmlessly against the decoupling materials, rather than transferring through the wall, floor, or ceiling. Because decoupling requires the removal of existing walls, floors, and ceilings, this method is best used during initial construction, though it can be implemented afterwards as part of a major renovation. Decoupling is ideal for blocking sounds that transfer through the structure of a building, such as impact noises. Examples: Resilient channels.NOTE: Poorly executed decoupling may actually worsen low-frequency noise by effectively creating a &#;room within a room&#;.
4. Absorption: Absorption is primarily used to improve sound quality within a room. It may play a role in soundproofing a space, but absorption is not nearly as effective as adding mass, damping, or decoupling. Examples include: Acoustic tiles, soft furniture.

Combining these principles is the most effective way to reduce or eliminate noise transfer.

navechan

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Re: The Damping Material and Sound Deadener Thread

Quote:

prashantuchil

Originally Posted by

After this, there is a considerable reduction of road noise in the cabin, remarkable improvement in sound quality and doors feel solid.
All in all, very satisfied with the time, effort and money spent.

I am looking for Sound/Vibration damping for my Creta SXO (which comes with BOSE system) in Bangalore. I see lot of jarring/vibration at the doors with even moderate volume.

I do not see much options here in Bangalore unlike north(delhi/mumbai).. After some research i am thinking to go with Dr Artex Earth Iridium(2mm) or Dr Artex Earth Gold HD(2.6mm)

Do you have any idea where we can procure these in Bangalore. Tried with evo they don't have this.

Appreciate any lead on this or any other good damping setup.

[I had Dynamate Extreme on my swift which was really nice].

Thanks
Naveen

Hi prashantuchil,I am looking for Sound/Vibration damping for my Creta SXO (which comes with BOSE system) in Bangalore. I see lot of jarring/vibration at the doors with even moderate volume.I do not see much options here in Bangalore unlike north(delhi/mumbai).. After some research i am thinking to go with Dr Artex Earth Iridium(2mm) or Dr Artex Earth Gold HD(2.6mm)Do you have any idea where we can procure these in Bangalore. Tried with evo they don't have this.Appreciate any lead on this or any other good damping setup.[I had Dynamate Extreme on my swift which was really nice].ThanksNaveen

Last edited by Aditya : 26th April at

18:53

. Reason: Quoted text trimmed

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