|| Soundproofing in General
What is soundproofing?
Soundproofing is defined as any method of reducing the ability of
sound to travel between point A and point B, and is accomplished
by the reduction of noise and the absorption of noise. A requirement
in many professional recording studios, soundproofing is also becoming
popular in residential structures, especially multi-family structures
like apartments and condominiums wherein tenants share walls.
The basics of soundproofing
In order to understand the concept of soundproofing, you must first
understand the concept of blocking sound. Specifically, there are
only three ways in which sound can be blocked or noise can be reduced.
These three ways are as follows: Space - This one is simple. The
further away from a source of sound you are, the less likely it
is that you will here the sound. For example, imagine you are walking
down a city street, and your friend who on the opposite side of
the street calls your name. Due to the space between you, it is
highly unlikely that you will hear your friend call your name. Likewise,
a neighbor who lives five houses down from you is less likely to
disturb you with a late night party than a neighbor who lives two
Space impedes sound travel. Mass - This one is also simple. The
more mass between the origin and destination of a sound wave, the
less audible the sound wave will be once it reaches its destination
point. For example, imagine you are inside your bedroom with the
door open, playing your stereo very loud. If your roommate complains
of the noise, you can easily close your bedroom door to reduce the
volume outside of your bedroom.
You can also put a towel or blanket in the opening between your
bedroom door and floor to muffle the sound heard outside your bedroom
even more. Dampening - This one is a bit more complex. Essentially,
dampening is a way to absorb sound by forcing sound waves to travel
through various layers of material with different densities, thereby
obstructing the sound wave's path of travel, and ultimately absorbing
the sound wave before it has a chance to become airborne. Dampening
works by limiting a sound wave's ability to vibrate through different
structures. This eventually results in the absorption of the sound
Diffraction of Sound - GSU
Speed of Sound
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