Acoustics – Soundproofing – Basics

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Stop the noise!

I got a new project. It is all about acoustics. Basically it is about stopping unwanted noise.

I am working on a new project. My task is to market variety of acoustic products. Sounds like a sales? Well, it is all about sales. However, I want to go a step further. I want to learn as much as possible about products I suppose to sell. And, I am document it right here. You are invited to be part of that process. Your comments and suggestions are always welcome.

Let’s do it!


Soundproofing is a process that revolves around effectively controlling unwanted noise, with various soundproofing materials used to mitigate the effects of noise.

Anything from people who want a quieter home and tranquility from noisy next door neighbours, to businesses who need to reduce the noise impact that they make on surrounding areas, soundproofing comes with a long list of causes and solutions.

In fact, there are a myriad of soundproofing materials that one can choose from to apply to different uses.

Some are more suitable or effective than others. That greatly depends on the type of noise created, the source of the noise, the structure of the building, wall construction, and various other key factors.

To understand soundproofing materials and how they perform, it is important to mention that sound is a form of energy.

Sound travels from a source, and during the distance that it travels it causes vibrations whenever it hits air and any objects in its path.

These sound waves then reach the recipient’s ears and stimulate the brain.

Soundproofing materials work to reduce the sound pressure created from the source to the receptor.

Soundproofing vs Sound Absorption

Before exploring soundproofing materials, it is advised to firstly understand the key differences between sound absorption and soundproofing.

It’s a common misconception to think that sound absorption is the same as soundproofing.

In reality they are not one and the same.

Sound absorption is in fact one element of sound proofing and is used in two ways:

Firstly, as part of a soundproofing system, as a material which is invariably added within a structure such as between the voids created in a stud wall, which can reverberate sound, adding sound absorption can prevent this.

Secondly, when sound absorbing materials are added to the surface of a wall or ceiling, it absorbs sound waves and reduces resonance and regeneration of the sound back into the room.

In doing so, improves the acoustics of a room which is called acoustic calibration.

For example, a noisy restaurant with hard surfaces typical of industrial influenced design of today’s trendy eateries, can result in a cacophony of sound from clattering cutlery and chattering diners.

This noise can be softened with panels of sound absorbing materials which equalize and balance the internal acoustics of a room which is acoustic calibration.

Sound ‘absorbing’ materials reduce the resonance and reverberation of sound waves within a space or room.

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