DIRAClive corrected response - Home Theater Forum and Systems - HomeTheaterShack.com

 
Thread Tools
post #1 of 6 Old 08-02-16, 02:18 PM Thread Starter
Shackster
 
Join Date: May 2016
Posts: 20
DIRAClive corrected response

Hi,

I just wanted to know..what will be the corrected response look like if i measure it with REW. I found this image on the internet, would it look like one of the green lines or that yellow flat line in the middle which seems to be too good?. thanks.
Attached Thumbnails
DIRAClive corrected response-rpisaleftafter.png  

hifikid80 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 08-02-16, 02:50 PM
REW Author
 
JohnM's Avatar
John
 
Join Date: Apr 2006
Location: UK
Posts: 6,410
Re: DIRAClive corrected response

The line in the middle is Dirac's prediction of what the average of the various individual measurements will look like after correction, the green lines are all the individual after-correction responses in the various measurement positions.
JohnM is online now  
post #3 of 6 Old 08-03-16, 12:01 PM Thread Starter
Shackster
 
Join Date: May 2016
Posts: 20
Re: DIRAClive corrected response

what would be my response curve if i measure it with REW? would it be closer to line in the middle ?
hifikid80 is offline  
post #4 of 6 Old 08-03-16, 02:46 PM
REW Author
 
JohnM's Avatar
John
 
Join Date: Apr 2006
Location: UK
Posts: 6,410
Re: DIRAClive corrected response

No, it would look like one of the green lines. Correction systems like Dirac, Audyssey or equalisers like those from miniDSP or Behringer cannot alter the seat-to-seat variation between measurements. When multiple measurements are made in Dirac it generates corrections that help on average, which means the corrections won't be an exact match for any individual location. If you measure at a single position and ask Dirac to correct only that, you will get something more like the yellow line. But if you move the mic and measure again at the new position you will get a different result.
JohnM is online now  
post #5 of 6 Old 08-07-16, 05:58 PM
Senior Shackster
 
Join Date: Feb 2011
Posts: 175
Re: DIRAClive corrected response

I own a MiniDSP DDRC-88A Dirac live device. I have made Dirac calibrations using just a single point position for the microphone, then afterwards taken a measurement in REW. I found the two charts almost identical. However it is nigh on impossible to do the full 9 point Dirac calibration and then repeat the exact same 9 points when measuring in REW to compare as in the OP's example.

Bottom line is that I find Dirac works very well, though like most room EQ it still benefits from optimisation afterwards using REW, particularly around the crossover region by fine tuning the target curves of the speakers and sub(s), plus tweaking the sub delay timing.
KelvinS1965 is offline  
post #6 of 6 Old 09-04-16, 05:58 AM
Senior Shackster
 
Flak's Avatar
 
Join Date: Nov 2013
Posts: 122
Re: DIRAClive corrected response

Yes,

those nine curves are visible in the Full Dirac Live version only... you will notice that even if they are different they show a general behaviour (before and after) that is corrected by Dirac in accordance with the user defined target (the orange line) in order to obtain the desired tonal balance:

BEFORE


AFTER


Flavio

Warning: I may be biased even if in good faith, I work for Dirac Research :-)
Flak is offline  
Reply

Bookmarks

Tags
corrected , diraclive , response

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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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