speakers behind masked screen - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 
Thread Tools
post #1 of 10 Old 02-28-2008, 09:01 PM - Thread Starter
RBP
Member
 
RBP's Avatar
 
Join Date: Nov 2007
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
How do you position speakers behind a 2.35 CIH acoustically transparent screen that uses masking? When watching slightly smaller ratio content, doesn't the masking come across and in front of the speakers (which are very close to the sides of the screen)? Wouldn't that degrade the sound too much trying to play through velvet?

Can you even use behind screen speakers in 2.35 CIH with masking?
RBP is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 02-29-2008, 12:55 AM
AVS Forum Special Member
 
coldmachine's Avatar
 
Join Date: Nov 2006
Location: Waiting in the weeds
Posts: 5,672
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Quote:
Originally Posted by RBP View Post

How do you position speakers behind a 2.35 CIH acoustically transparent screen that uses masking? When watching slightly smaller ratio content, doesn't the masking come across and in front of the speakers (which are very close to the sides of the screen)? Wouldn't that degrade the sound too much trying to play through velvet?

Can you even use behind screen speakers in 2.35 CIH with masking?

You can get a system with AT masking. A number of us use them. Worth sticking a post in the $20k forum for details.

--------------------------------------------
"Wow, do you think you are Adonis"...... "Baby, I'm not A-donis, I'm THE-donis"
coldmachine is offline  
post #3 of 10 Old 02-29-2008, 01:11 AM
AVS Forum Special Member
 
Tukkis's Avatar
 
Join Date: Jan 2004
Location: Brisbane, Australia
Posts: 1,212
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
If you only watch 2.35 and 16x9 you could use normal masking and position the speakers just within the 16x9 frame.

The commercial cinemas do this. This is also how the speakers are setup in the film mixing studios.
Tukkis is offline  
Sponsored Links
Advertisement
 
post #4 of 10 Old 02-29-2008, 07:09 AM
AVS Forum Special Member
 
McCall's Avatar
 
Join Date: Jul 2006
Posts: 3,069
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 14
Setting up the speakers on actuated platforms that move the speakers either to 16:9, 2.35 or outside the screen area all together is what I find works best.
This is something I was working on when I found we are moving and I have to turn my back on my almost complete theater for a some number of years. UGH!

McCall
-----------------------------------------------------------------
Yup that really IS me in the avatar.
https://www.avsforum.com/avs-vb/showt...he+Mickelodeon
McCall is offline  
post #5 of 10 Old 02-29-2008, 07:53 AM
AVS Forum Special Member
 
Erik Garci's Avatar
 
Join Date: Oct 1999
Location: Durham, NC, USA
Posts: 4,644
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked: 11
You could use two pairs of front L/R speakers and an A/B selector switch: pair A positioned for 2.35:1, and pair B positioned for 16:9.
Erik Garci is offline  
post #6 of 10 Old 02-29-2008, 08:10 AM
Member
 
popechild's Avatar
 
Join Date: Dec 2003
Posts: 194
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Liked: 10
Quote:
Originally Posted by coldmachine View Post

You can get a system with AT masking. A number of us use them. Worth sticking a post in the $20k forum for details.

$20k? I've got DIY AT masking on my screen, and I'm pretty sure it didn't cost more than $150. And mine was more complicated than many because I didn't have much extra room on the sides of the screen.

https://www.avsforum.com/avs-vb/showthread.php?t=1000388
popechild is offline  
post #7 of 10 Old 02-29-2008, 09:55 AM - Thread Starter
RBP
Member
 
RBP's Avatar
 
Join Date: Nov 2007
Posts: 39
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by popechild View Post

$20k? I've got DIY AT masking on my screen, and I'm pretty sure it didn't cost more than $150. And mine was more complicated than many because I didn't have much extra room on the sides of the screen.

https://www.avsforum.com/avs-vb/showthread.php?t=1000388

It looks like your speakers are within the 16:9 aspect ratio of the screen. Was this on purpose? Why didn't you push the speakers closer to the sides of the 2.35 screen?

I'm just thinking that the combfiltering that would occur with a AT screen and AT masking would be far more prominent that just the screen.

Interesting setup for the masking though and I like the room.
RBP is offline  
post #8 of 10 Old 02-29-2008, 10:01 AM
Member
 
popechild's Avatar
 
Join Date: Dec 2003
Posts: 194
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Liked: 10
Quote:
Originally Posted by RBP View Post

It looks like your speakers are within the 16:9 aspect ratio of the screen. Was this on purpose? Why didn't you push the speakers closer to the sides of the 2.35 screen?

I'm just thinking that the combfiltering that would occur with a AT screen and AT masking would be far more prominent that just the screen.

Interesting setup for the masking though and I like the room.

I didn't want to put the speakers much wider than they are primarily because of the distance I happen to have between the speakers and the screen (since they're wall-mounted). I had to take into account that the sound would already disperse some by the time it even got to the screen surface. But many people don't want them spread out wider than the 16x9 anyway, because the whole idea of AT is to get the sound coming from directly behind the picture that's making that sound. At 16x9 width, you get good enough dispersion, if you put them too far outside the 16x9 you get sounds coming from somewhere other than where they're taking place on screen for 16x9 and 4x3 material.
popechild is offline  
post #9 of 10 Old 03-01-2008, 04:21 AM
Advanced Member
 
Dark_Wizard's Avatar
 
Join Date: Jul 2007
Location: Denver, NC
Posts: 520
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Like popechild I too have my speakers at the edges of the 16:9.

This is an earlier pic, sorry.
Dark_Wizard is offline  
post #10 of 10 Old 03-02-2008, 12:02 PM
AVS Forum Addicted Member
 
Jason Turk's Avatar
 
Join Date: Oct 2000
Location: Rochester, NY USA
Posts: 12,276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 10
As coldmachine said, an AT masking system will give you the most flexibility. I am putting one in myself shortly (custom made).
Jason Turk is offline  
Sponsored Links
Advertisement
 
Reply 2.35:1 Constant Image Height Chat

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off