How to use REW to measure Dirac ART sound improvement?

[Paul McNeil]

I'm using Dirac ART on my Marantz AV 10. I've posted before but now have 4 subwoofers (which probably does not matter). In my previous posts, it was suggested that I could measure, via REW, the difference Dirac ART made in sound by looking at the 'Delay' curves. I also see a difference, plus and minus Dirac, in the 'waterfall' curves. Please see the data below. Am I looking at the correct parameters? I ask because there is SO MUCH to adjust with Dirac ART! And no direction from Dirac...

 

[Keith_W]

Please see book 2 of "Taking and Interpreting measurements with REW" available here.

Re: how to set up Dirac. Someone wrote and posted a guide to Dirac ART setup a few hours before your post. Read this.

 

[Oddball]

We have so many ART threads, but seems most active is this one and you might get most of traction there so no need for separate threads.

Active Room Treatment (ART) by Dirac

Ah, okay thanks, you are correct - sorry if I came across as difficult. I see when looking at the filters you can see they are the same for sub 3 regardless: And REW confirms: EDIT - It's impressively effective: That respons can surely sound as "less bass then before" Congrats !!

www.audiosciencereview.com

I think your decay looks pretty good and in line with what one could expect based on various graphs posted. You might want to sweep the subs to 115dB if you want to get a bit of surprise. Decay will start to misbehave big time.

Based on my experience, having 4 subs will make your ART calibration pretty simple. ART will just do well whatever parameters you set. So I would not obsess over it. I hope you are enjoying the sound which is most important.

As we people are, there is now a whole new discussion about dry vs wet ART sound. Dry being too decay free and wet being more "natural". Some of discussion is in the thread above, if you want more need to go to AVS forum and spend some time there. I don't really worry about that. I had too much rain for many years and really appreciate what ART has done.

 

[kawauso]

Please see book 2 of "Taking and Interpreting measurements with REW" available here.

Re: how to set up Dirac. Someone wrote and posted a guide to Dirac ART setup a few hours before your post. Read this.

Thanks, Keith! That was really kind of you — I’m happy you shared it

 

[Oddball]

Thanks, Keith! That was really kind of you — I’m happy you shared it

I could not agree more. Keith has abundance of knowledge that we can aspire to. For one, I need to go back to phase and group delay as that is what ignored for the longest time on a simple premise that I can't do much about it and ultimately don't really hear it.