Acoustic treatment of a specific room

I also draw one possible sollution. On the drawing there is no thin absorbers yet, just provisory bass traps and position of the speakers and the new "walls". I chose this speaker placement, because in this placement they play in the longer dimension of the room. But they could also be placed at the opposite side of the room. What would be the best solution regarding windows? If they will be placed as I draw them, I'll have to make portable first reflection absorbers, because of the doors on the left and right.

I plan to make a drywall (is this a term for gypsum boards?) on the right side of the listening position, to make another room - vocal booth. Is it big enough, that it is worth being done?

The other question is the simetry in front of the drawn listening point. Will there be enough symetry for good stereo image?

And another question at the rear wall of the drawn listening point. I read in your book, Ethan, that drywall in the corner doesn't work as a bass trap at all. Is this because reflectivity of the gypsum boards? Should I find another solution or should I do like it is drawn, but with other building material?

Maybe you can suggest a good solution without having those drywall adjustments (I would prefer this solution!)?

Thank you all very much for your help,
greetings,

Samo

After further reading of your book, Ethan, I can probably answer a few of the questions to myself. So, regarding windows and chosen listening point. It is good to have windows in front wall, because there is no great need to absorb higher frequencies, because loudspeakers are playing in the other way, so the windows can stay free of absorbtion panels and daylight can enter in the room. At lower frequencies, where loudspeakers play omnidirekcional, the windows actually play the role of low frequency absorbers in a way. So the placement is probably good, don't you think? Also, If i put my speakers on the opposite side of the room, I would not be able to treat a back wall (because of a windows), which is the most critical wall beside the areas of early reflections at the side walls.

Thank you for reply. But what about the rear wall? Is the solution with the drywall OK, or not? Is maybe better, if I leave this side of the room as it is and make portable bass trap, with which I close the passage, when I will be mixing/listening music/practicing? I enclosed another drawing with this option on the rear wall. I assume, that this would be even better bass trap then the others which are directly in the corners, because of larger gap between absorbent material and reflective surfaces back there. Am I right? But if I make it that way, is that a problem with the asimetry at the rear wall?
And just one more question, regarding the new wall on the right side of the listening point. What material would suit best if we take into consideration the absorbtion/reflection of the left side wall (which is brick wall), and good acoustic isolation of vocal booth?

Also, a tiny vocal booth needs to be 100 percent treated with thick absorption.

The larger the bass traps, and the more you have, the better. Always.

--Ethan

Angles won't help, and it's best if you avoid the same dimension for length and height. A small booth like this needs to covered 100 percent with absorption at least 2 to 4 inches thick. According to my Graphical Mode Calculator program, reducing the length from 2,6 to 2,0 with the same 2.6 height and 1.5 width will be pretty good.

--Ethan