New to CIH. Automatic Masking Possible? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 10 Old 07-18-2018, 02:15 AM - Thread Starter
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New to CIH. Automatic Masking Possible?

I am building a new theater and want to have CIH.

I'll be using a JVC DLA-X590R. I'd also like to get a screen with a viewing width of ~130" and a viewing height of 55". I'll be sitting about 14' away.

I'll be zooming, no lens.

I have two questions:

- Does anyone know of an affordable motorized masking system?
- Is there any way (aside from writing custom software or spending $20k) to make the motorized masking system automatically adapt based on the aspect ratio of the content?

Last edited by ronaks; 07-18-2018 at 02:33 AM.
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post #2 of 10 Old 07-18-2018, 04:43 AM
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Quote:
Originally Posted by ronaks View Post
I am building a new theater and want to have CIH.

I'll be using a JVC DLA-X590R. I'd also like to get a screen with a viewing width of ~130" and a viewing height of 55". I'll be sitting about 14' away.

I'll be zooming, no lens.

I have two questions:

- Does anyone know of an affordable motorized masking system?
- Is there any way (aside from writing custom software or spending $20k) to make the motorized masking system automatically adapt based on the aspect ratio of the content?
I wrote software and implemented an auto masking system but it works only on HTPC with content on local disk that can be examined prior to playback (automatically).
https://www.avsforum.com/forum/23-sc...c-masking.html
If you're in the same situation and only difference is you need side masking, I can probably help on the software side.

Video: JVC RS4500 135" screen in pure black room no light, htpc nvidia 1080ti.
Audio: Anthem mrx720 running 7.1.4, McIntosh MC-303, MC-152, B&W 802d3 LR, B&W HTM1D3 center, B&W 805d3 surround, B&W 702S2 rear, B&W 706s2 x 4 shelf mounted for atmos, 2 sub arrays both infinite baffle: 4x15 fi audio running on behringer ep4000 + 4x12 fi audio running on 2nd ep4000.
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post #3 of 10 Old 07-18-2018, 05:16 PM
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Quote:
Originally Posted by ronaks View Post
I am building a new theater and want to have CIH.

I'll be using a JVC DLA-X590R. I'd also like to get a screen with a viewing width of ~130" and a viewing height of 55". I'll be sitting about 14' away.

I'll be zooming, no lens.

I have two questions:

- Does anyone know of an affordable motorized masking system?
- Is there any way (aside from writing custom software or spending $20k) to make the motorized masking system automatically adapt based on the aspect ratio of the content?
For the automatic masking, I assume you mean that once you play the video content, the correct aspect ratio is detected and the projector zoom setting and screen masking system is set to that aspect ratio.

I have such a setup with just a couple of assumptions:
1) Materials to be played via Kodi... Any resolution works, including 4k. (So no automatic AR detection if you are playing from a cable box, streaming, etc...)
2) Projector's zoom setting can be controlled discretely via ip or ir.
3) Screen masking system can be controlled via ip or ir.

How it works:
1) When kodi start's to play a file, my add-on screen captures very much like any of the ambient light add-on for kodi. The add-on then calculates the aspect ratio based on the screen captured content.
2) With the calculated aspect ratio of the playing video source, the add-on then sets the projector zoom setting and the screen masking set.


Here's the avs thread: https://www.avsforum.com/forum/117-2...-cih-skin.html

The whole thing runs on an NVida Shield. To control the projector (DLA-RS400) zoom settings and the screen masking (Carada Masquerade CIH) I use the simple control app running on a left over ipad MINI. See the above thread for the details.

The code is not pretty, but it works.
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post #4 of 10 Old 07-18-2018, 06:08 PM
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Seymour screen excellence has an “affordable” masking system called the Trim economical masking, 2 way.

I just ordered the 120” wide scope version with the motor to allow 4 preset stops controlled via IR. They have a 130” wide scope version if that’s what you’re looking for. It is model Trim L-130.

Still expensive but way cheaper than most electronic masking I’d looked at. Not as cheap as making it yourself, of course!
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post #5 of 10 Old 07-19-2018, 02:11 PM
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Originally Posted by magi1500 View Post
Seymour screen excellence has an “affordable” masking system called the Trim economical masking, 2 way.

I just ordered the 120” wide scope version with the motor to allow 4 preset stops controlled via IR. They have a 130” wide scope version if that’s what you’re looking for. It is model Trim L-130.

Still expensive but way cheaper than most electronic masking I’d looked at. Not as cheap as making it yourself, of course!
And Seymour has manual masking panels for their fixed screens - even less expensive !

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post #6 of 10 Old 07-19-2018, 10:00 PM - Thread Starter
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Here is the quote I got on the Seymour:

TAM 2L-130 $18,575 (add $1,212 + $342 for RS-232 control equipment)
TRIM L-130 $7,931 (add $946 + $342 for RS-232 control equipment)

That seems way high to me. Especially the $8k for manual masking!!

Da-Lite Dual Format Imager appears to be a little over $3k. I think that could be a really good option.

Does anyone have other suggestions?
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post #7 of 10 Old 07-19-2018, 11:05 PM
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Trim-130 is not manual masking. That’s electronic. Their manual masking will run you half the Trim price or less depending on the frame etc.

Not sure if you need acoustically transparent screen but, if so, make sure the masking is also AT.

I’m not very familiar with Da-Lite’s products but sounds cool from my quick Google search. Hopefully someone will chime in.
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post #8 of 10 Old 07-19-2018, 11:16 PM - Thread Starter
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Quote:
Originally Posted by magi1500 View Post
Trim-130 is not manual masking. That’s electronic. Their manual masking will run you half the Trim price or less depending on the frame etc.
Thanks! I don 't see their manual masking on the Seymour website. Can you point me to a product page?
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post #9 of 10 Old 07-20-2018, 06:22 AM
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Quote:
Originally Posted by ronaks View Post
Thanks! I don 't see their manual masking on the Seymour website. Can you point me to a product page?
See here.
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post #10 of 10 Old 07-20-2018, 08:46 AM
 
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If you're going to go the manual route just build some panels for a hundred bucks and call it good.
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