Absorbers and Trap attachment - Home Theater Forum and Systems - HomeTheaterShack.com

Reply
 
Thread Tools
post #1 of 15 Old 01-19-16, 04:39 PM Thread Starter
Shackster
David
 
Join Date: Nov 2015
Location: United States
Posts: 8
My System
Absorbers and Trap attachment

Hello,
I recently joined and started posting. Presently I am working to add acoustic treatment to my studio control room. It is a small room 15' wide x 20' long with a ceiling that slopes from 9 feet in front of the listening area to 10.5 at the rear. There is a lot of glass: bay window at the front, French doors and larger pane of glass on the left and picture window and flanking sash windows on the right. The rear is floor to ceiling shelving of albums and CDs and books. The Genelec monitors are just in front of the desk spaced 4' apart and 3.5 n from the front wall. (Note bay window behind).
I know the room needs acoustic treatment. I would like to be able to hang and remove as necessary any absorbers or traps. There is a shelf that wraps around the left, front and right side of the room at 7' above the floor. I would like to suspend panels on hooks, perhaps on Lexan with any absorbers attached from the underside of that shelving. That way I can completely remove them if I am not performing any critical mixing.
Since these would not be rigidly attached to a wall I question if the effectiveness of the panels will be compromised.
I will continue to educate myself by reading the Master Handbook and other resources. In the meantime any suggestions from the group will be most appreciated.
I understand I can not upload any images until I have made 5 posts. A few more to go.

Best regards
David
DavidRVoorhees is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 01-19-16, 04:52 PM
HTS Senior Moderator
 
bpape's Avatar
Bryan Pape
 
Join Date: Sep 2006
Location: Wildwood, MO (St. Loui
Posts: 5,288
Send a message via AIM to bpape Send a message via Skype™ to bpape
Re: Absorbers and Trap attachment

Welcome. Any chance of some pictures so we can better visualize things?

I am serious... and don't call me Shirley.

Bryan Pape
Lead Acoustician/Owner
Sensible Sound Solutions
bpape is offline  
post #3 of 15 Old 01-19-16, 04:59 PM Thread Starter
Shackster
David
 
Join Date: Nov 2015
Location: United States
Posts: 8
My System
Re: Absorbers and Trap attachment

I have taken many but seem to be restricted in what I can upload until I reach a posting minimum. Almost there. Let me know if there is a way to do it that I have not learned on this site.
DavidRVoorhees is offline  
 
post #4 of 15 Old 01-19-16, 05:03 PM
Elite Shackster
 
Talley's Avatar
 
Join Date: Dec 2010
Location: Houston Tx
Posts: 1,295
Re: Absorbers and Trap attachment

The slope helps but you'll still have first wave reflections.

Cloud the ceiling area at that point. you can always put stuff on stands. GIK acoustics has products that freestand that you can place in front of these windows and move them later.

Master Electrician

To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

XPA-7 & Krell Showcase 7 | XMC-1 | SVS Ultra Tower system | HSU VTF-15H MK2 | BenQ W1070 | Jamestown 135"
Talley is offline  
post #5 of 15 Old 01-19-16, 05:24 PM
HTS Senior Moderator
 
bpape's Avatar
Bryan Pape
 
Join Date: Sep 2006
Location: Wildwood, MO (St. Loui
Posts: 5,288
Send a message via AIM to bpape Send a message via Skype™ to bpape
Re: Absorbers and Trap attachment

I believe you still need 5 posts. There used to be a post padding thread.

I am serious... and don't call me Shirley.

Bryan Pape
Lead Acoustician/Owner
Sensible Sound Solutions
bpape is offline  
post #6 of 15 Old 01-19-16, 06:16 PM
Elite Shackster
 
ellisr63's Avatar
Ron
 
Join Date: Feb 2012
Location: In the Home Theater
Posts: 5,783
My System
Re: Absorbers and Trap attachment

Quote:
DavidRVoorhees wrote: View Post
I have taken many but seem to be restricted in what I can upload until I reach a posting minimum. Almost there. Let me know if there is a way to do it that I have not learned on this site.
I believe you can post a link to the pics if you have uploaded them on-line...like to photobucket or other image hosting sites (free).

My Home Living room Theater
Samsung 65" FP, Yamaha CX-A5100, Xilica XP4080, (4) Klipsch RP160MS, (4) JBL 8340As, (2) Yamaha P2500s amps, PS3, XBox One, (1) Asus mini pc, (2) Furman Power Conditioners, Darbee Darcet, and a Project RPM 1.5 Carbon turntable..
ellisr63 is offline  
post #7 of 15 Old 01-19-16, 09:17 PM
Senior Shackster
 
Blacklightning's Avatar
 
Join Date: Nov 2011
Location: edmonton AB
Posts: 462
My System
Re: Absorbers and Trap attachment

just post one more time and you can add pictures. we are looking forward to seeing your room.
Do you have a mic and REW?
Blacklightning is offline  
post #8 of 15 Old 01-19-16, 10:26 PM Thread Starter
Shackster
David
 
Join Date: Nov 2015
Location: United States
Posts: 8
My System
Re: Absorbers and Trap attachment

I have been using REW to baseline the room starting with it nearly empty, then with things rearranged to what should be the final configuration. While I have many microphones for my studio I procured an Audix TM1 which has been working quite well.

I attached 5 images that I took earlier today.

The suggestion was made to use free standing panels. However, I prefer to not take up precious floor space. THat was the impetus to consider suspending panels from hooks on the underside of the shelf that wraps around the room at a height of 7 feet above the floor.
Attached Thumbnails
Absorbers and Trap attachment-front-view.jpg  

Absorbers and Trap attachment-left-side.jpg  

Absorbers and Trap attachment-rear-left.jpg  

Absorbers and Trap attachment-rear-right.jpg  

Absorbers and Trap attachment-right-side.jpg  

DavidRVoorhees is offline  
post #9 of 15 Old 01-20-16, 07:41 AM
Elite Shackster
 
Talley's Avatar
 
Join Date: Dec 2010
Location: Houston Tx
Posts: 1,295
Re: Absorbers and Trap attachment

Honestly I think just some really thick heavy curtains on the front/left/right is all you would need and then install some GIK cloud panels above the MLP on the ceiling. All those bookshelves with all that stuff really acts a a great diffusor.

Master Electrician

To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

XPA-7 & Krell Showcase 7 | XMC-1 | SVS Ultra Tower system | HSU VTF-15H MK2 | BenQ W1070 | Jamestown 135"
Talley is offline  
post #10 of 15 Old 01-20-16, 10:12 AM
Elite Shackster
 
Lumen's Avatar
Lou
 
Join Date: May 2014
Location: Indianapolis, IN
Posts: 2,261
My System
Re: Absorbers and Trap attachment

Quote:
Talley wrote: View Post
...All those bookshelves with all that stuff really acts a a great diffusor.
I've heard that too, but I've also heard the opposite; so not really sure what to believe. Some say diffusion isn't needed in small listening rooms because of short reflection distances involved. Again, I'm not agreeing or disagreeing - just putting it out there. In any case, here's an excerpt from GIK's Education and Research article "How Diffusion Works":

There are a great many myths about ‘home brew’ ways to provide diffusion. Most do not work at all and many work poorly or only over a very narrow range of frequencies. Let’s take a look at one – a bookcase with books set at randomly varying depths.
First of all books, if anything, will be more absorptive than reflective at any but the highest frequencies. Second, random depths do not generate random reflections over a predictable and controllable area. The width, height, spacing, and pattern of the wells of a diffusor are carefully calculated to make sure they generate a smooth and even scattering of the waves over a 180 degree angle. Third, without this carefully calculated spacing, we can cause frequency related aberrations due to constructive and destructive wave interactions from various reflections. We’re in effect getting very little of the benefit of a diffusor while creating more issues in the frequency response.

.
I try to be as good as my dog thinks I am
To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
Lumen is offline  
Reply

Bookmarks

Tags
absorbers , attachment , trap

Quick Reply
Message:
Options

Register Now




PLEASE COMPLETE ALL REQUIRED FIELDS BELOW... THANKS!

REQUIRED FIELDS ON THIS PAGE
YOU MUST COMPLETE ALL OF THESE

Username
Password
Confirm Password
Email Address
Confirm Email Address
Random Question
Random Question #2




User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

AN INVALID EMAIL ADDRESS WILL CAUSE YOUR ACCOUNT TO BE DELETED!

See our banned email list here: Banned Email List

We DO NOT respond to spamcop, boxtrapper and spamblocker emails... please add @hometheatershack DOT com to your whitelist prior to registering or you will get nowhere on your registration.


Email Address:
OR

Log-in










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



Posting Rules  
You may post new threads
You may 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 is not allowed!
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


For the best viewing experience please update your browser to Google Chrome