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MAD acoustical connections mass air decouple

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A typical graph will reveal that mid level frequencies and high frequencies are contained inside of the high TL assembly. Low frequency (LF) is difficult to stop. You can contain LF up to a frequency level as defined by how much mass you have in the assemble as a starting place. Other factors come into the equation to better define the TL. The distance between one side of the wall, roof, floor, etc. and the other side is called the “air”. Also builders insulation is placed inside this cavity, the air space. The larger the air space the lower the TL of the assembly will get.

Sound Transmission Class – STC is used much like the term transmission loss. STC is an acceptable term in the building and construction arena in general. The difference, and this is big, is that STC is only concerned with a small part of the overall frequency spectrum. 125Hz to 4000Hz.

The House is Alive from Vibration and Sound meaning you could have other players in your room!

An interior residential wall assembly rates around 32 STC, a typical wall like you have in your bedroom. Low frequency is always the problem. It passes right through the wall into the hall and gets into your girlfriends ears while she is trying to listen to her favorite show. It can happen the other way as well. Her music from a tablet or tv show can be interfering with YOUR music production because of the poor transmission loss of the walls in your apartment.

You can define what the STC differential is by doing 2 things. What is the outside noise level, this is where you start. What is the noise level on the interior side of the assembled wall, roof floor, etc. Lets say you have an ambient noise level of 57 STC outside. Inside your room the STC is 33. 57 – 33 = 24, your wall has effectively blocked out 24 points on the STC scale.

These are the items you want to concern yourself with when you are attempting to “soundproof” your musical production room.

What are the elements required to stop sound, to isolate or soundproof your musical production room?

Glad you asked. 4 things, 4 simple things are required to achieve sonic nirvana in your life, and they are;

1. Mass
2. Air
3. Decoupling

MAD! Mad Acoustics is what your music production room needs!

Yes Mass and Air, Decoupling and damping are what you need to establish a high transmission loss environment! You have to establish these in the construction phase to deliberately isolate sound. This is not an afterthought and for the most part cannot be added later with ease.

Decoupled walls ceiling and damped floorEver heard of a room in a room? Mass, air, damping and decoupling are involved in every part of that assembly. Let me draw you a picture for your viewing entertainment.

A well isolated room requires a lot of thought and a lot of money if you build it from the ground up. The design build stage is important, if you get this part wrong, its usually too late to correct the issue without remodeling the original build.

So get M.A.D. Acoustically and get it right the first time!

Smallroom Acoustics Where Do I Begin
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MAD acoustical connections mass air decouple
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