In this graphic here that I’m referring to, you can see the breakdown and we have it colored in red, yellow and green. 4,500 cubic feet and up, plenty of space, plenty of space to manage a low-frequency pressure and the reflections or RT 60 times. It won’t work for maybe a live room with drums but it might work for a voice room or a control room. Now there are qualifications for the usage. It’s problematic, we have pressure issues, we have RT 60 reverberation time issues but it is treatable depending on usage. Less than 3,000 cubic feet, we can treat it. And just look at where your dimensions fall within that chart and realize that if it’s less than 1,500 cubic feet, find another room. If you’re considering a room for extra usage, look at the length, width, and height, get the volume, look at this chart and I’m going to include the chart at the end so you can visualize it. So, that will give you some idea of three different levels to look at. Anything over 4,500 cubic feet is treatable and usable almost in all forms and usages. The next one is greater than 4,500 cubic feet. And you have to figure out what you’re trying to do in the room versus how much treatment you’re going to need in the room. So it’s – when I call problematic, it’s treatable, depending on the usage. Less than 3,000 cubic feet work for some usages but not for others. Yes, it can be dealt with depending on usage and what you’re trying to achieve in that room. So less than 3000 cubic feet, problematic. But it’s the cubic feet we’re looking at because we’re talking about a box of pressure here. Now, these can vary, you know the length, width, and height, they can all be different. So less than 1,500 cubic feet, absolutely not. If you’re going to manage low frequency in a room less than 1,500 cubic feet, the amount of treatment that you have to put in the room will make it so small that you wouldn’t be able to sit in it. Why do I say this? It’s just too small for any energy to be managed correctly. So if your room length, width, and height is less than 1,500 feet, please, cubic feet, please find another room. We have 206 rooms built and measured in our database and I took all those rooms and I broke them down into three areas and I think these three areas will help. So I went through our database and I came up with three divisions. If you’re overseas, cubic metric volume, you just have to get this number in your head. That will give you your cubic volume, cubic feet of volume. Take the length of your room, the width of your room and the height of your room and multiply the three. So, how do we calculate room volume which is the length, width, height? Good simple formula. Obviously, if we keep increasing the pressure and decreasing the volume of the box, we might as well just shoot ourselves because that’s a relationship that will not work at all. And the room size and volume are critical with this box of pressure, Obviously the smaller we make the box and if we keep the pressure constant, we’re going to have issues. So each room usage has a particular goal that you have to achieve. In the control room, the mixing and mastering room, you want a translation. In a live room, you want to record certain things, you want them to sound a certain way. It’s a box that must contain and manage all the energy that you put in it if you’re going to achieve certain results. But it’s this box of pressure from our loudspeakers or whatever the usage is, live room, control, voice. What is the room? A room is really this huge box of pressure. So I kind of put together some guidelines here and maybe this will help the situation a little bit. Today we’re going to talk about room size and volume as I get a lot of questions about this and it just never ceases to amaze me how many, how much misunderstanding there is about this. Hi everyone, Dennis Foley from Acoustic Fields. This blog was updated on 12/5/19 to reflect changes in experience and knowledge in regards to room size. For complete understanding and comprehension, please view the video which is included in this text. There will be some errors in grammar and sentence structure that occur during this translation process.
ROOM VOLUME CALCULATOR SERIES
The following is an unedited transcript from our video series from Acoustic Fields.
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