Garage Soundproofing: 2 Tips for Avoiding a Flutter Echo Garage Soundproofing: 2 Tips for Avoiding a Flutter Echo

When garage soundproofing, you want to soundproof your space without creating a fluttering echo effect. Fluttering echos create an undesired sound effect in your room that will alter your acoustics. You can tell that you have a fluttering echo problem if you stand in your empty space and clap your hands. If the sound of your clap echos around the room you have a fluttering echo. There are two easy thing you should always do in addition to soundproofing your walls to prevent fluttering echos.

Why Fluttering Echo Exists 

Fluttering echo is an effect created when sound bounces off a hard surface and reflects back toward you. When you make a sound, the sound travels outward and away from you. The sound will then either be absorbed or reflected. When sound is absorbed, it does not create an echo. When sound is reflected, you have an echo effect. If you are in a space that has reflective surfaces, you will receive an echo. A fluttering echo can occur between any two reflective surfaces. It can be reflected from horizontal surfaces or vertical surfaces. Anywhere that sound vibrations can bounce off a surface, you can have a fluttering echo. 

Tip 1 - Its Not Just Your Walls 

Flutter echo is common in rooms or spaces that have absorbent walls but also have reflective floors and ceilings. Simply creating a soundproof room, with soundproof absorbent walls is not enough when you are looking to achieve a good acoustic sound within your space. When trying to rid fluttering echo from your space, you need to think about all of the surfaces that sound can reflect back from.

Soundproofing walls will absorb the sound, creating a soundproof room. As well, the absorption of the sound prevents the walls from reflecting the sound vibrations back toward you. However, unless you also do something with your floors and ceiling to prevent sound reflection, you will still have a fluttering echo of the sound reflecting off the floors and ceiling and bouncing back to you. To prevent the floors and ceilings from creating a fluttering echo, you need to insulate or cover them with an absorbing material. 

Tip 2 - Shape Matters 

Another good idea to prevent fluttering echo and improve acoustics in a soundproof room is to not have parallel surfaces in your room. Typically, a room is square with walls parallel to each other and the floor and ceiling parallel to each other. To lessen the fluttering echo effect and improve overall acoustics in your soundproof room, you should think about altering the room shape. Any trapezoid shape will work, as long as it alters the parallel walls.

Imagine if you were standing in a perfectly square room and you threw a ball against the wall. Chances are that the ball will come bouncing right back at you. Now, imagine you are in a trapezoid shaped room that does not have parallel walls. If you throw the ball against a wall, depending on where it hit, it could fly off in varying directions. The ball could bounce off any wall and will move freely around the room. This is more of the effect you would like in your room and it will prevent the fluttering echo effect where sound bounces back and forth off parallel surfaces.

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