• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Audyssey One - Nexus (Automated hi-res Denon/Marantz calibration with REW/Umik-1/2)

PHD

PHD

Active Member
Joined
Mar 15, 2023
Messages
274
Likes
394
I'm sure many of you have already of the Audyssey one EVO script for D&M AVR/AVPs:

www.audiosciencereview.com

Audyssey Manual Calibration “OCA’s REW + Audyssey Awesomeness”

@OCA Thank you for the guidance; your videos are very helpful. I managed to run down, and these are my results
www.audiosciencereview.com www.audiosciencereview.com

So @OCA has just released the next version of A1, entitled "Nexus", which allows for accurate REW measurements using other UMIK-1/2 or the original Audyssey analog mic. Please see the two-part video guide here:




The new AVS thread:


So far most who trued Nexus report a significant improvement in SQ compared to EVO Maestro and of course to the original Audyssey and probably to Dirac on D&M as well.

Necus files download:

Nexus - Google Drive

drive.google.com drive.google.com


Don't forget to like and subscribe to his YT channel as he's doing this 100% for free.
 
Last edited:
DENON AVRS HAVE A WEB INTERFACE?!?! Daaamn. And I had those for 5 years now.
Isn't this tool kind of huge? Like a free or even better Dirac for Audyssey-Users?
 
I don't know why I don't think it will be very successful here. It escapes me that there are thousands of threads talking about speaker signal, dacs, curves and volts and a free script that puts your home cinema system above the vast majority of systems implemented by the industry has no impact. And now being able to interact with Rew directly is an exciting game. The gentlemen of the industry, Denon and company, are up to other things. Anyway, don't say you weren't warned and don't change your system without trying this script or the previous version for dummies.
 
mosco said:
I don't know why I don't think it will be very successful here. It escapes me that there are thousands of threads talking about speaker signal, dacs, curves and volts and a free script that puts your home cinema system above the vast majority of systems implemented by the industry has no impact. And now being able to interact with Rew directly is an exciting game. The gentlemen of the industry, Denon and company, are up to other things. Anyway, don't say you weren't warned and don't change your system without trying this script or the previous version for dummies.
Click to expand...
A fair number of people here eschew AVRs. Not to mention DSP.

Old school audiophile prejudice at work. Gotta have separates! Or even separate monoblocks! And no goldarned DSP to mess with my precious (2 channel!) signal chain!

(Or : gotta have my TOOOBS, man)

That said, the author of EVO has been a bit salty here on ASR.
 
Last edited:
It's really quite cool.

The original (A1 / Evo) used a standard measurement using the included Audyssey mike and the standard Audyssey measurement routine to create a better alignment / blend between subs and speakers (all of them) using a script + integration with REW than Audyssey could do on its own. And it was very successful - in my system, with two presets available for comparison, the Audyssey output vs. A1 / Evo was no contest: Evo was MUCH clearer in the room (vs. Audyssey, which was clearly "boxed-in" sounding) and the integration with the subs was superb.

Nexus takes this same concept a bit further by letting you use calibrated mics (e.g., UMIK, etc.) and REW sweeps (instead of Audyssey's own measurements) to get even better accuracy, and leverages a few more techniques to get even better results. And, although I really didn't think Evo would be bested substantially ... again, the results are quite clear: yet another step forward in clarity / integration across all speakers.

OCA / serko has been at this for some time, and uses measurements (he's a master with REW) to confirm his ideas / findings. Well worth trying out.
 
But how does this work in short? As I understand it, it injects an existing MultEQ-App calibration file before uploading it to the receiver.
 
anphex said:
But how does this work in short? As I understand it, it injects an existing MultEQ-App calibration file before uploading it to the receiver.
Click to expand...
Correct, in essence.

  1. The original version (A1 / Evo) used the Audyssey setup process (which EVERYONE with a Denon / Marantz receiver has access to) to run the sweeps and create the .ADY file, which is then processed using the script + REW to calculate levels / distances / crossovers / EQ, which are then stored in the .ADY file and uploaded to the receiver using the iOS MultEQ app.
  2. The latest version (Nexus) follows the same process but uses external (read: longer, more accurate) sweeps and REW + a calibrated mic to create the measurements. Once the measurements are created, the process is basically the same; i.e., the script drives REW via API to do the calculations, creates the .ADY file, which is uploaded to the receiver using MultEQ again.
A1 / Evo is virtually fool-proof to anyone with a minimal knowledge of how to upload / download files, while Nexus requires a bit of additional knowledge / fiddling but the results are a bit better because you're starting with more accurate measurements. OCA has also added some updated logic to the script which he plans to retrofit to EVO after the dust settles from Nexus.
 
anphex said:
DENON AVRS HAVE A WEB INTERFACE?!?! Daaamn. And I had those for 5 years now.
Isn't this tool kind of huge? Like a free or even better Dirac for Audyssey-Users?
Click to expand...
You mean the web control function? I have an older Denon that has that but think they did eliminate it for a while a few years later at least for some models....
 
The current version is 1.7 but some users are experiencing issues (script hangs). I'd wait for v1.8 to be released in a day or two. I guess it should become stable by v2.1.
 
Has anyone tried this yet? Curious how it runs sweeps against the Atmos channels. I am enjoying Evo the "improvements" it made for me:

1. Audyssey was trying to correct room nulls and this was audible, A1 Evo has a parameter for "max gain" which limits how much it will compensate
2. As mentioned earlier, clarity improved. Is this because A1 limits correction to 500hz and below?
3. Subwoofer integration (I use MSO) and it nailed it. I had previously manually "fixed" sub integration adjusting distance but A1 got it good from the beginning

I will say it took a while before a version of A1 Evo that was stable and running for me so I'd expect the same with this new version.
 
Nexus 1.10 is already great. The integration, clarity and system crossovers exceed all Audessy's expectations and I don't think Dirac will be able to improve on them. And it's free, open and fast. Hundreds of posts trying to integrate a system, a simple sw, or waiting for dirac art and Serko comes along and kicks the board... Great.
 
Okay, I just sunk my teeth into it and swallowed the rather steep learning curve and complex setup/tutorial. The time was totally worth it.
I have seen plenty of nice gui-optimize-something tools for Windows/Android etc. that looked nice but didn't improve really anything beyond what the target system already did on its own.

This is not one of those placebo systems. It's actually great! And once you get the concept, redoing optimizations and measurements is rather easy. Plus you learn some cool REW stuff you usually don't use.

What it actually does:
- sophisticated optimization, it takes about 2 minutes on an Intel 13700k
- really fixed many quirks of Audyssey
- great time alignment
- even greater frequency response optimization and dip-fixing (my 60 Hz dip is gone!)

The drawback: It swallows plenty of gain, my current AVR is about 12dB louder now for same the same volume. But this is possibly due to my huge power amp gain mismatch (hypex vs topping). I will observe this. If the Topping still causes trouble (sent it to a kind ASR user for fixing once but I still dislike this PA5)

To sum it up - try it out! It's exceptional. And free!

Just keep in mind you have to dig through the whole video to understand everything and look for "manual" instructions in the optimization log like polarity flipping or setting adjustments in the AVR menu.

Edit: Yeah, the largest improvement is in bass. This is probably what DIRAC does, maybe even better. It actually told me basically "this optimization will work now but you have to flip the polarity of one subwoofer, please don't forget to do that." Did that, bass responsiveness 10/10. I am stunned
 
Last edited:
anphex said:
Okay, I just sunk my teeth into it and swallowed the rather steep learning curve and complex setup/tutorial. The time was totally worth it.
I have seen plenty of nice gui-optimize-something tools for Windows/Android etc. that looked nice but didn't improve really anything beyond what the target system already did on its own.

This is not one of those placebo systems. It's actually great! And once you get the concept, redoing optimizations and measurements is rather easy. Plus you learn some cool REW stuff you usually don't use.

What it actually does:
- sophisticated optimization, it takes about 2 minutes on an Intel 13700k
- really fixed many quirks of Audyssey
- great time alignment
- even greater frequency response optimization and dip-fixing (my 60 Hz dip is gone!)

The drawback: It swallows plenty of gain, my current AVR is about 12dB louder now for same the same volume. But this is possibly due to my huge power amp gain mismatch (hypex vs topping). I will observe this. If the Topping still causes trouble (sent it to a kind ASR user for fixing once but I still dislike this PA5)

To sum it up - try it out! It's exceptional. And free!

Just keep in mind you have to dig through the whole video to understand everything and look for "manual" instructions in the optimization log like polarity flipping or setting adjustments in the AVR menu.

Edit: Yeah, the largest improvement is in bass. This is probably what DIRAC does, maybe even better. It actually told me basically "this optimization will work now but you have to flip the polarity of one subwoofer, please don't forget to do that." Did that, bass responsiveness 10/10. I am stunned
Click to expand...

Can I ask what AVR you are using and how many subs?
 
anphex said:
Just keep in mind you have to dig through the whole video to understand everything
Click to expand...

Yeah ... I tried it some three or four times – and I have to admit that to me (!) that certain kind of narration is very hard to bear.

And especially when it comes back to memory that there has been a »one click solution« claim in relation to it in the past all my patience is lost :facepalm:
 
Timmy said:
Yeah ... I tried it some three or four times – and I have to admit that to me (!) that certain kind of narration is very hard to bear.

And especially when it comes back to memory that there has been a »one click solution« claim in relation to it in the past all my patience is lost :facepalm:
Click to expand...
Well, the "one-click claim" is about A1 / Evo, NOT Nexus.

And A1 IS basically one-click - all you have to do is get a Audyssey measurement file and run it through the script.

Nexus is meant to allow calibrated measurements while still allowing uploading .ady files to the receiver - again, making it easy to do some pretty advanced tweaking. And it is DEFINITELY not a single-click solution, but still pretty easy. I didn't have to watch the video to figure it out, if that makes a difference.
 
jhwalker said:
And A1 IS basically one-click - all you have to do is get a Audyssey measurement file and run it through the script.
Click to expand...

Maybe I mixed things up.

Got a fresh (actually my very first) .ady file today. Via that »script« + a single click it can be converted into a much nicer .ady file than before? Should give it a try then.
 
With Evo it's just one click and you have to click a lot of them on the ridiculous Denon app that charges you 20 euros for continuous errors. With Nexus you have to click more but less than to get a Dirac license and you learn something for free. Nexus alone is fantastic and has many possibilities. I connect it to Mso to manage my sw and if Denon would extend the delay of their AVRs like they do when you pay for Dirac, then it's possible, it would be wonderful. I don't understand who reads this forum and swallows reviews and graphics that I will never understand in my life, and gets blocked by a couple of videos that you only have to watch for a while to make your AVR system sound better than your mahogany equipment. Lastly, it has been shown that the latest Denons distort the measurements of the sw and the company does not offer any solution. The only reliable solution is to measure yourself with REW and give the job done to the Avr.
 
You must log in or register to reply here.
Back
Top Bottom