Soundproofing materials

The set of acoustic solutions that prevent the sound produced in an environment from escaping into adjacent rooms fall into the so-called "phonoimpedance".

We immediately clarify that every situation is different from another and needs "tailor-made" solutions.

Wavelengths

To prevent a sound from leaving a room it will be important to consider all the frequencies produced by that sound. It is well known that as the frequencies change and therefore the wavelength changes, the ability of the same to go beyond the walls of an environment changes.

⁃ Low frequencies: they have an important wavelength and therefore they propagate easily (the bass of the stereo speakers, ...);

⁃ Medium or high frequencies: they have a wavelength simple enough to block and repel.

"Soundproofing"

To soundproof a room, therefore, we will have to work mainly on low frequencies.

We could obtain high-performance results only by carrying out structural interventions on the environment in question, in fact, any other non-invasive operation will not achieve any satisfactory results.

Let's analyze how to intervene:

⁃ Mass: when the thickness (mass) of a partition varies, its sound-absorbing power increases. Even if it's not always so !! In fact it is not said that a partition wall of 60cm or more (impossible to do or find!) Can block an important sound pressure that has a wide spectrum of frequencies.

Ini Cavity walls: the application of the mass / spring / mass principle is very effective, ie for example creating a false wall with plasterboard interspersed with an air space in which sound-absorbing material (glass wool, ... ). The same principle can be applied to the ceiling to isolate trampling noises coming from rooms above the environment in question.

⁃ Aria: starting from the concept that the sound is transmitted in the air, leaving drafts could risk creating a "passage" for the noises.

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