Key posts: Need help with vocal booth/ room dimensions

Substantial posts by flyguyz, who started the thread, and by the forum’s most active contributors. 82 of 140 posts are listed.

Page 1

flyguyz, 23 April 2018Hi, I have a small-medium size space to work with that I am looking for some help on determining dimensions for a vocal booth that I will build inside the room. The…
Gregwor, 23 April 2018I'd rotate your control room so that you are looking to the right of the picture. That way, your firing your speakers down the longer length of the room. I'd ditch the…
Gregwor, 23 April 2018I'd recommend orienting your screens side by side and if you are wanting producers or other musicians to see what you're doing, use video over cat6 adaptors. Personally,…
Gregwor, 24 April 2018To build a sexy control room with flush mounted speakers and such like your current SketchUp would definitely be over your budget. It sure helps. So I tried to quickly…
Soundman2020, 25 April 2018Definitely! That's a really nice sized room: Low ceiling, unfortunately, but around 400 ft2 floor area, so it would be possible to have the room oriented "sideways" (the…
flyguyz, 26 April 2018Based on my plan above, would constructing the wall between the two still be necessary? Since I have a drop ceiling, wouldnt that defeat the purpose of creating the wall…
Gregwor, 27 April 2018The device can be placed >3m from listening position. Yes Then the level of isolation you will achieve will be poor. You've indicated the amount of isolation you desire,…
flyguyz, 28 April 2018I was hoping that I could build a vocal booth at the far end of this room using the same design john used in the sketchup file he posted here: viewtopic.php?f=1&t=14147…
flyguyz, 29 April 2018Thanks for the response. I guess my question is how much isolation would I get from just 2 layers of 5/8 drywall with green glue in between? Lastly, If I understand…
Gregwor, 1 May 2018You can check how much isolation you will get using this equation: TL(dB)= 20log(M) + 20log(f) -47.2 M is the surface density of the wall (mass per unit area (kg/m²) ) F…
flyguyz, 10 May 2018Looking for some feedback on this modified layout. I have the following questions: 1) Are these dimensions for the control room reasonable or is there a room l x w that…
Gregwor, 12 May 2018I unfortunately don't have time to type in the dimensions and look into different possibilities. You know the rules for dimensions, so I think you've got it under…
flyguyz, 12 May 2018I've attached a couple drawings of a new plan where I will be adding a window and door on each wall so that i can see inside the booth. I think Id rather spend the money…
Soundman2020, 14 May 2018That's looking much better. But I'm wondering about that wasted space on the left side of the booth: What's that for? Storage? If so, how do you get to it? There's no…
Gregwor, 15 May 2018Another reason to not have your booth door there would be that it will interfere with your bass trap placement. Personally, my ISO room design has the door right in the…
flyguyz, 17 May 2018Hey I am looking for some feedback on my ventilation/baffle box plans. I currently plan on creating 2 boxes to use for ventilating the vocal booth only. I have a split…

Page 2

flyguyz, 18 May 2018Thanks for the info, I will see if I can find 1"MDF, otherwise I will do 2 layers of 1/2" or 5/8" instead. Also will look into swappint the 703 with duct liner as…
Gregwor, 18 May 2018Until yesterday, I've always been under the impression that as soon as your inlet duct hits your silencer box, your cross sectional area must double. In a lot of my…
Soundman2020, 18 May 2018Maybe I didn't explain that part too well: The cross section does, indeed, need to change drastically, to at least double (or half), at both ends of the silencer box (or…
Gregwor, 18 May 2018Awesome. Thanks for sharing Stuart. When I said bizarre, I referring to how strange the box design would have to be if it maintained a small 50 square inch interior…
flyguyz, 3 June 2018Due to budget constraints I would like to simplify my original design and overall sound isolation needs. My main goal is to be able to track vocals in the booth and have…
Soundman2020, 3 June 2018Your plan is reasonable, if your primary goal is isolation of the vocal booth alone. That should give you fairly decent isolation, certainly enough to track most vocal…
Gregwor, 4 June 2018If you don't entirely seal and beef up your outer leaf, you are basically building a single wall with a single mass. It will provide very poor isolation. The control…
flyguyz, 4 June 2018Thanks, I knew that answer was coming! I will construct it accordingly! Next question... will either of these fans be suitable for my hvac needs?…
flyguyz, 9 June 2018Thanks for the input, ill try to find another fan! _________________________________________________________ I have one more question before I feel comfortable with…
Soundman2020, 9 June 2018Two main things to check when choosing the fan: 1) It has the correct capacity. In other words, it can move the RIGHT amount of air for YOUR room, and 2) It can move…
flyguyz, 9 June 2018Thanks for the quick response! Ill have to look into how to calculate the static pressure... Thanks for answering the question about the height. Should i use roxul safe…
flyguyz, 9 June 2018Ugh... just when I think I've got it figured out... I just started demo on the rear wall and found out that there is not an outer layer of drywall on the other side of…
Gregwor, 9 June 2018This is pretty standard construction practice. It's often referred to as a frost wall. So you'll need to build an outer leaf wall to separate your space and theres…
Gregwor, 11 June 2018Do you mean like t-bar ceiling with square little ceiling tiles in it? If so, no. This won't work. Those tiles are light and so is the tin skeleton. You need rigid mass.…
flyguyz, 11 June 2018Here are some images of the ceiling/roof above the drop ceiling that I removed so you can get a better idea of what I am dealing with. 1) There are nails through the…
Gregwor, 12 June 2018Sealing holes like that is typically a lot harder than spraying some foam crap on them. You should really tell your landlord about it as the building is his…

Page 3

flyguyz, 14 June 2018Understood :shock: Thanks for the insight! On another note... I am going to start my baffle box build and was wondering if the following plan for passing the duct…
flyguyz, 14 June 2018Ok, so I would need a total of 4 baffle boxes then? one for the intake register in the control room Flex duct between baffle boxes one for the incoming air register to…
Soundman2020, 14 June 2018If you want high isolation for your room, yes. You COULD do it with just one box on each, provided that you have a massive sleeve through the leaf on either end, and a…
flyguyz, 15 June 2018Ok Thanks for the input Stuart. Good advice! I have some question about Constructing the outer shell ceiling... As of right now, (Length will increase when I knock out…
Soundman2020, 15 June 2018Your outer-leaf ceiling is already there! It's the ceiling that you see when you stand in the totally empty place, after you remove everything that is in there…
flyguyz, 21 June 2018I'm going to start building the baffle boxes this weekend, and wanted to make sure I have the concept correct before I start builidng... My understanding is that I need…
Gregwor, 23 June 2018:thu: :thu: I don't know the math you used or dimensions you have there, but the idea is right. The only things I really see that could be problematic so far with your…
flyguyz, 26 June 2018I've updated my drawing with a better visual of what I am planning for my vocal booth ventilation. The boxes will be in the dead space in between the control room wall…
Gregwor, 26 June 2018Almost, I think. The sharp 90 degree turn is where turbulent noise will be. Not only do you have to worry about the air velocity change, you also need to worry about the…
Gregwor, 27 June 2018It looks like your booth sleeve penetrates near the floor in the corner. You could try turning your silencers on their sides so that your booth sleeve is coming out near…
Gregwor, 4 July 2018It's up to you to decide whether or not you're okay with a constant wind blowing type sound or not. The booth side shouldn't be neglected though. Make sure it's quiet…

Page 4

flyguyz, 9 July 2018So I am thinking about going with this method of construction for my vocal booth ceiling instead of building and raising modules into place... 1) Install a layer of…
Gregwor, 11 July 2018How will you be able to fasten the OSB into the joists from above with only a few inches space to work? Screws would be sufficient, yes, but the cleat method would allow…
flyguyz, 12 July 2018As I am getting closer to framing now, I am kind of second guessing myself on whether I want to go with inside out walls for the side walls (I will still do inside out…
Gregwor, 12 July 2018If you have this much room, you should be raising your ceiling higher to get better acoustics in your booth. But, maybe you have that much space including all of the…
Gregwor, 13 July 2018Draw it in SketchUp. Joining in the corners should go together just like a normal wall would. A dry 8’ 2x4 weighs about 10 pounds, 2x6 about 15.7 pounds; density about…
flyguyz, 14 July 2018I have a few questions about constructing the inside out walls for the vocal booth. I am planning on framing the walls (with dw and gg) on the floor and lifting into…
Gregwor, 14 July 2018Larger and really, I'd put at least 5. 1 at the top, 1 at the bottom, 1 in the middle, and 1 between the top/middle and 1 between the bottom/middle. In theory, you…
flyguyz, 11 November 2018Hey all, Im going to be ordering acoustic fabric soon, and would like some advice on how many panels I should use in my control room. My room dimensions are the…
Soundman2020, 16 November 2018What type of panels? For what purpose? There are several types of panel that you might need in a control room, built in several different ways, for several different…
flyguyz, 17 November 2018Sorry for the confusion The two areas are the following: (the height of the control room actually is higher than what is listed (height shown is only the drop ceiling)…
flyguyz, 16 January 2019Hey all, the room dimensions of my control room are: W = 187.5" L = 215" H (Drop Ceiling) = ~94" H (Actual Ceiling) = I want to say ~115" but I need to remeasure to be…
Soundman2020, 16 January 2019Have you tested the room with REW? Both before you started treating (empty room) and again now that you have the back wall partly done. If not, then you won't really now…
Gregwor, 30 January 2019That's a good one! Wait to cover insulation until you're positive you don't need to change anything. The equilateral triangle positioning is a myth. Have you figured out…
flyguyz, 26 February 2019So I've run into some techinical difficulties trying to calibrate my sound card in REW. I am using Apollo 8 thunderbolt with iMac and I have a TRS to TRS cable plugged…
flyguyz, 26 February 2019I have attached the mdat files from my first couple REW tests (the baseline test is with my desk pushed back slightly out of the way, and the "with desk" test is with my…
flyguyz, 26 February 2019Haha thank you! And yes i definitely did, I’ll redo the test and repost results a little later today! Quick question. When placing my monitors I made an equilateral…

Page 5

flyguyz, 27 February 2019Interesting...I may have to sacrifice a bit as I do not want to have a trip hazard with the speaker wires being in the path between the door to the booth and my desk. I…
Soundman2020, 27 February 2019Then run the wires in a different direction, and along the walls! You must be feeding power to your desk from somewhere, so run your speaker cables alongside that power…
Soundman2020, 27 February 2019The HS8 is an active speaker: built-in amplifiers. So there's no problems with having long cables to get to the speakers. There won't be any losses in quality due to the…
Soundman2020, 28 February 2019The speakers should always be angled to point at a spot about 16 to 24" behind your head. 18" is a good choice. Set up a mic stand or something else vertical at that…
flyguyz, 28 February 2019Quick question, I was thinking about using roxul safe n sound instead of OC 703 due to the cost and availability in my area. However, you mentioned making 4" panels for…
Gregwor, 28 February 2019Safe n Sound actually performs well. It is flimsy and hard to work with in my opinion though! If it were that easy and cheap, everyone would do it. The more insulation…
Gregwor, 28 February 2019Here is an explanation from Stuart about why you need 4" of insulation. Since SBIR is such a horrible thing, I wouldn't screw around with 3" of insulation. I'd…
Soundman2020, 28 February 2019I guess what I wrote was a little ambiguous, talking about 4" gap and 4" panels... Greg is right: What I meant was that you need a 4" panel between the wall and the rear…
flyguyz, 1 March 2019Here are some updated mdat files with the speakers moved closer to the wall, 4" gap between the rear corner of the speaker and the surface of the front wall. I ran three…
flyguyz, 2 March 2019I've attached a screenshot of the REW results showing before and after moving the speakers 4" from the front wall. It looks like the drop at 46 Hz did move as you…
flyguyz, 3 March 2019I've attached updated REW files and a graph showing the room response after adding 4 floor to ceiling super chunks in the front and rear corners of the room. Please…
flyguyz, 5 March 2019Here is the mdat file for the test run with 4" panels of 703 behind the monitors. I had to jack them up on 2x4's for now until I complete them with fabric and hanging…
Soundman2020, 5 March 2019Not so sure about that! Here's a comparison of your original baseline results, to where you are now: Image not preserved:…
flyguyz, 5 March 2019Hey Stuart, Yes You are correct, in comparison from the first baseline test I ran I have come a long way! I was referring more to the difference between the last two…

Page 6

Soundman2020, 5 March 2019OK, that would explain why they aren't doing as much as I expected: they aren't as big as I thought they were. For superchunks, I usually go with 36" sides, or 24"…
Soundman2020, 5 March 2019In line with the mic, horizontally. That's where the flutter will be strongest. This isn't about reflections from the speakers on the side walls and back to the mix…
flyguyz, 6 March 2019I used the offset method and ended up with the following results... https://www.dropbox.com/sh/1j1b8m354qwh ... 1DFMa?dl=0 I don't think these are the results we were…
Soundman2020, 6 March 2019Here's you REAL results... the ones you SHOULD have been looking for. You wont find flutter echo in frequency response, because it doesn't have anything to do with…
flyguyz, 6 March 2019:shock: :oops: Wow thanks for breaking that down for me! I was misunderstanding what we were trying to correct! I thought you were giving me a solution to help resolve…
flyguyz, 16 March 2019Here is an updated mdat file with the 1st reflection panels added to the side walls. The panels are 2' x 4' x 4" and are placed on the wall with a 4" air gap. I put 2…
Gregwor, 16 March 2019Can you please post pictures of the treatment each time so that we can see exactly what you did. Strangely, the low mids improved in the mdat, but the upper mids seemed…
flyguyz, 17 March 2019Hey, what do you mean by the string trick? You lost me on that last request of adding distance from speaker to mic. Here are pictures of the panels... they are setup the…
Gregwor, 18 March 2019A few helping hands will make this go really fast: - measure the distance from the acoustic axis of your speaker to the tip of your measurement mic (write this down). -…