iso booth dimensions

I just got done reading Rod Gervais' book and I am still unsure about what to do in my case. I want to build an iso booth inside a storage unit. From what I have been reading I assume that I should build either a triangle or pentagon-shaped room with vaulted ceiling. but I don't understand the HxWxL dimensions in the book. is that for a rectangle room? also if I don't purchase the software in the book can I do well by just putting traps in the corners and foam on the walls-covering about 25% of the room?

There is an announcement at the top of the forum about what to do to assure getting as many responses as possible. The announcement leads to this post. Actually, several people, who are experts on this forum, will not reply if you do not do what is written the post. If you want the short simple answer, cover every surface that can with 4" thick fiberglass/mineral wool. If you want more, see the first paragraph. Andre

ok I have a storage shed outside of town and it's pretty quiet and isolated out there. it has a concrete floor with two cinder block walls and two tin(?) walls. it is 10x10x20 (height x width x length)and I want to build a small iso booth in side of it. I am located in Utah of the USA budget: $500 USD it would be nice to make it portable but that's not imperative and it could be half the size of the unit if needed. There won't be any electrical or HVAC. In the FAQ section I saw someone built one in a square or rectangular shape but I keep reading that parallel walls are no good. what the deal with that? I think my main question is about the dimensions: triangle; pentagon; rectangle or what not? this room doesn't have to be exceptional on sound reduction b/c it's located out in the sticks anyway. I just want to get rid of reflection issues and other serious problems. the book says ratio's of 1:1.4:1.6 or something like that but that must apply to a rectangle and I don't think I have enough room for that if I use an 8' ceiling. maybe a 7' ceiling would work?

You are over thinking. Use 4" of absorbent material on all surfaces that you can That includes the ceiling. your budget is too low if that includes the walls, door and window. Andre

whether it's a rectangle or a pentagon doesn't really matter? what part am I over thinking? maybe I'll use the two existing block walls to save money

stupidfatnugly wrote:

whether it's a rectangle or a pentagon doesn't really matter?

Correct. Small rooms like vocal booths have terrible acoustics inside.

what part am I over thinking?

Room shape. For a vocal booth, make it as dead as possible.

maybe I'll use the two existing block walls to save money

From what I know, with drawings, yes. Andre

ok thanks Andre If I think of anything else I'll ask