Acoustic Panel Placement Mirror Trick

Call a friend.

Acoustic panel placement mirror trick.

In a home theater or 2 channel listening room these bounce off the nearby walls and produce very noticeable second order reflections which compete with the direct. Absorption is a very popular method of acoustic treatment because it is both readily available and relatively inexpensive. But if your room is already built there is an easier way to find your first reflection points. In fact the higher the frequency the more directional the sound waves tend to be.

We suggest ceiling clouds be at least 12 inches deep. 2 inch thick panels are an absolute minimum. Place the panels on the hard surfaces to the left and right of the mixing position and the ceiling cloud above which is the minimum treatment expected. The easiest and cheapest way to treat your first reflection points is to use broadband absorption.

The panels on the front wall are mounted vertically mostly because they would not fit horizontally. 4 6 inch thick rockwool or rigid fiberglass acoustic panels will do the trick. Fwiw the panels in my room are mounted horizontally on the sides. My room is an odd shape and curious if the mirror should be held flat against the wall or 90 degrees to the wall.

The difference the panels add to such a small room is astounding though. You will notice the improvements. Hi all i am setting up my acoustic panels tomorrow and was wondering about the mirror test. I didn t have to worry about placement because the room is only 11 x10.

This is great news. We didn t do the geometry calculation but used a mirror instead to find the best placement. In most cases you re better off with thicker panels e g 8 inches because they absorb to lower frequencies. Placement of equipment within the room.

Realizing many people don t want to drop 250 on the hardware for that the mirror trick will get you in the ballpark for placement. Placement of listeners within the room. Recording studio designers and acoustical engineers use a technique called ray tracing to find early reflection points. Sound above 400hz is considered to be directional.

Acoustic panel placement the mirror trick. Best to have an acoustic measurement system to place them correctly and do before after measurements. If i lay it flat on the wall along one wall i won t. It may not matter but i had to ask.

I too noticed upper bass. I made this visual to simplify the explanation.