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The Timelapse Theatre - Planning n' Build Log

157K views 1.3K replies 104 participants last post by  J_P_A  
#1 · (Edited)
#6 ·
Your room is real close to the dimensions I have. I tried a seating configuration like you show and it's pretty tight. I'd keep the orientation like you have it, screen on the short wall. Check out my theater (signature) to get a feel for the size of your space with stuff in it.
 
#7 ·

Quote:
Originally Posted by jdanforth /forum/post/20203994


I had originally planned for the false wall so that I could use an AT screen but then somebody talked me out of it based on audio quality, moire problems, and cost.

Audio quality? I find that slightly misleading, since you have better audio quality with an AT setup (if configured correctly). Moire is an issue in some instances, but can be dealt with or eliminated (I don't have it). If cost is another concern, you can DIY an AT screen for less than buying a retail non-AT screen.


I would also keep your current orientation with the screen on the short wall.
 
#8 ·
Welcome to the cash flow black hole (aka HT)
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One thing I noticed is that it looks like you have two center channel speakers. I believed this is a big no no given that it leads to severe comb filtering. Am I missing something?
 
#9 ·

Quote:
Originally Posted by jdanforth /forum/post/20197929

Sound Proofing

Before I decided whether or not I need to apply double drywall, green glue, etc. I am going to hook up the speakers and pump up the jams. If I can perform this experiment while my wife and son are asleep then I will have my answer!

Don't forget that soundproofing is not just to keep sound from bothering the rest of the family, but also to lower the noise floor in your theater. Depending on the amount of ambient noise in your home (walking, kids playing, the sound of AC running, etc), this might be the difference in being able to watch a movie without turning the volume up for quiet dialogue and back down for loud effects.
 
#12 ·

Quote:
Originally Posted by jdanforth /forum/post/20208930


Special thanks for the great detailed photos of your masking solution on your DIY screen.


I was planning to go curved but I see you have flat. Any reason you did that other than, I assume, it was an easier build? What is the width?

I went with a flat screen since I have no plans to buy an anamorphic lens any time soon. With my long throw, even with a lens the pincushion would be minimal. Plus this screen was done on the really cheap. I have about $150 in it, the most expensive thing being the steel I used for the top and bottom borders.


The screen is approximately 108"x42". Eyeballs are about nine feet back.
 
#13 ·

Quote:
Sound Proofing

Before I decided whether or not I need to apply double drywall, green glue, etc. I am going to hook up the speakers and pump up the jams. If I can perform this experiment while my wife and son are asleep then I will have my answer!

The purpose of sound isolation is to lower the noise floor in the room to below NR22 (below the level of the softest sound on the sound track).

Quote:
That's a good question. I had originally planned for the false wall so that I could use an AT screen but then somebody talked me out of it based on audio quality, moire problems, and cost.

BS what part of acoustically transparent do they not understand? Of course, they totally forgot to tell you about high frequency slap echo and SBIR notches caused the the screen itself. Find a different advisor.

Quote:
Really? I don't understand. I suppose woven would be better than microperf and neither would be better than no barrier but I'm just going on my gut instinct. Color me curious!

No barrier? Well, hum ... if that were the case speakers would not come with acoustically transparent speaker grills. Why would woven be better than microperf? There is no inherent reason why that would be true or not true. I wonder what the shadows cast by some weaves do to the picture quality?


Quote:
One thing I noticed is that it looks like you have two center channel speakers. I believed this is a big no no given that it leads to severe comb filtering.

Serious big no no. There was one, count 'em one, Meridian processor modified 10 years ago to handle this horrid problem and you don't own it.


Don't put the center channel below the screen ... particularily with multiple rows of seating.


There you go...some free advice ... likely worth exactly what you paid for it.
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#16 ·
Wow that restaurant is amazing - as would your build if you could pull that off. If designed with it in mind, you could build in some nice diffusion - but if done haphazardly, could make a mess of things acoustically as well. Good luck!
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#18 ·
Hey Jon! I see you already have a build thread.
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I'm also on the cash flow program. Depending on income, it can really slow things down. I'm in year three right now! I've only been working about half time though. The economy has crushed my industry (development).


I highly recommend fitting an AT screen in place. The "better" sound that folks are referring to is due to more flexible speaker placement options. You can put the speakers right where they need to be for the best imaging and anchoring. I found it to be VERY valuable.


Can you post a floorplan that includes more than the theater room? Access doors? Equipment room?


There are different preferences for coming in at the front of the theater or the rear. Mine is from the rear, and I like it. No traffic or distractions as people come and go.


I'd also think about that riser some more. You want to minimize steps in a dark room. Instead of having all those edges as tripping hazards, can you extend it wall to wall. Then you can have one or two places that you step and the rest is safer.


Anyway, I look forward to following along. If you think a visit ot my place might be helpful, then lets plan a visit.
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Tony
 
#21 ·

Quote:
Originally Posted by Brad Horstkotte /forum/post/0


Wow that restaurant is amazing - as would your build if you could pull that off. If designed with it in mind, you could build in some nice diffusion - but if done haphazardly, could make a mess of things acoustically as well. Good luck!
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I've been thinking very hard about that. The structure will diffuse really well but I don't know how I can model it before building it. My hope is that the ribs will diffuse, the lining between them (OC703 or whatever) will absorb, and I'll be OK.
 
#22 ·
"Fine detail" ???? You're kidding, right? You obviously haven't read through much yet! LOL
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I've seen some clever ways of handling risers. One option that helps in tricky rooms is to extend the riser through the entry and out into the adjacent room or hall, with the step occuring out there.
 
#24 ·
My first inclination is to put the screen on the left hand wall (as drawn). Make a cover of some sort to black out the window in the door, but you can leave the door for easy access to the hot tub.


It gives a few benefits
  • Exterior door will not impact screen size
  • Greater width allows more flexibility on seat choice
  • Walkway to the hot tub will include the space in front of the screen - no need to take space away from seating area


It is true there is no free lunch. Depending on screen size you have disadvantages
  • Relatively short throw can limit PJ choices
  • High gain screens will impact the view of the outside seats
  • Multiple rows of seats will be have problems
 
#25 ·
A home theater designer trick is to narrow the room by creating an aisle with open cutouts, down the door and av rack side? A large AT screen wouldn't impact on your screen size (assuming your projector can handle it).


The room would be more dedicated theater like, and cost you a seat. You could even enter at riser height and handle the riser step down to the lower level, in the aisle. (Assuming you have room height and room to raise the stairwell entry door.)


Or you could do a partial hallway section up front. Move the av rack up into some of that aisle. The doorway would be hidden in a blacked out front wing wall. Acces to the rear of the av rack could be in this hallway. The front of the room could be performance driven and dark, with the seven seating area could be more relaxed.
 
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