Measure my room - Page 2 - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 26th October 2008, 05:31 PM   #11
mikee55 is offline mikee55  United Kingdom
diyAudio Member
 
mikee55's Avatar
 
Join Date: Dec 2005
Location: West Howe
Default Hello HK26147

Are you suggesting going back to normal posistioning? That would put th IB to the left channel. would this be bad?
Damn, I'd have to shift the TV I've cut into the dado rail.
Attached Images
File Type: jpg dado.jpg (13.7 KB, 63 views)
__________________
If it don't work, I'll fix it in the mix! Or visit http://lsdp.proboards.com/index.cgi
  Reply With Quote
Old 26th October 2008, 05:37 PM   #12
mikee55 is offline mikee55  United Kingdom
diyAudio Member
 
mikee55's Avatar
 
Join Date: Dec 2005
Location: West Howe
Default Hello HK26147

Are you suggesting going back to normal posistioning? That would put th IB to the left channel. would this be bad?
Damn, I'd have to shift the TV I've cut into the dado rail.

Click the image to open in full size.


Mike
Attached Images
File Type: jpg dado.jpg (13.7 KB, 62 views)
__________________
If it don't work, I'll fix it in the mix! Or visit http://lsdp.proboards.com/index.cgi
  Reply With Quote
Old 26th October 2008, 08:02 PM   #13
HK26147 is offline HK26147  United States
diyAudio Member
 
Join Date: Jan 2008
Your setup ( 1st pic ) is Emily-centric...
From her perspective she probably has the best imaging and soundstage as her ears are close to the apex of a 1 meter equilateral triangle, and hear the direct waves much louder than the reflections.
The rest of the audience is a different situation. It is the uneven constructive and destructive interference from reflection that will smear imaging. I doubt you would be willing or able to change this room to an anechoic chamber.
FWIW, I simply have not been able to get severely off-sided placement to work that well.
This Ripple Tank Simulation
http://www.falstad.com/ripple/
Demonstrates better
If you set it to 2 sources and 1 frequency and add borders you can approximate wave propagation in a room.
Move the sources to simulate the current location, and observe the non symmetrical pattern disturbances as each source is not at the same distance from reflective surfaces as it's companion.
The left speaker has different reflective paths than the right one.

If both speaker can't be moved right, my alternative would be to keep the right speaker approx where it is and slide the left corner speaker an equal distance down the left wall ( ie corner-centric ).
Try these alternatives in the ripple simulations and you see better pattern symmetry.
With an active crossover @ 80hz or below in small room with it's inevitable cabin gain, I have not found exact sub placement to be hypercritical.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Nasty Room Resonances in New Listening Room TubeHead Johnny Multi-Way 4 23rd May 2009 11:13 PM
basic room accoustics..help design my ht room :) JinMTVT Multi-Way 4 4th September 2007 11:35 AM
Speaker Workshop - using "Measure -> Passive Components" to measure ESR ? percy Multi-Way 0 12th March 2006 09:18 PM
MTM - How to measure in room response? Spearmint Multi-Way 9 13th November 2004 08:09 AM


New To Site? Need Help?

All times are GMT. The time now is 01:31 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2