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Wowed again! Thank you , sir! "changed default EQ target type in REW from "Subwoofer" to "None" " and ran the script A1Evo v3x.

Hi very new to this stuff today and when I installed REW as per your instructions in the video, the API tab does not show up, so cannot proceed just yet until I know what to do. REW version is latest V5.31.2. Can you help please? Thanks

Very nice explanation. I have done both the v3and v3x for calculations. I think v3x is better. your eq setting makes audyssey next level. I think it is very close if not better than Dirac live. Trionove on the other hand, doesn’t suit most fans as most of us don’t have a dedicated room for movie. Living room setting is 90% of the cases I guess

Thanks for all of your hard work!🥸

@ocaudiophile Does your last version of A1 still work? I have a later beta of REW and it won't get past the first step in the script. I tried to download the specific version of REW you say it works with but your link doesn't work and I can't find it anywhere online.

This is a game changer if you have a Marantz or Denon AVR! Not only is the in-room FR incredible, the crossover from the mains to my subs has never sounded so seemless. I've banged my head against a wall trying to get a minidsp and multiple subs to sound good with sub optimal results.

Thanks for providing this amazing tool! A question: My original Audyssey XT32 calibration sets my subs at -8.0 and -8.5 respectively. The EVO 3.X DEQ optimization lowers them even more to -9.0 and -9.5. Why is that, and does it seem correct?

Strange, loaded v3x yesterday. And tonight did a new calibration, because it was mentioned there was later that day an silent update on 18.03. Same ady, same results on levels, distances, crossovers, setting lfe+main……but the new calibration has less bass. This is because the subs are playing not as loud, but have same level as previous v3x. Is the silent update doing something? Any thoughts? @ocaudiophile

@ocaudiophile Thanks again for all your work on this. I had the following problem with the original A1 and it’s still happening to me with EVO, I commented about this before you might recall. The script is setting the distances for my rear surrounds way off for some reason. My rear’s are just behind me, slightly below my head rest not even 5 feet away but A1 puts their distances at 20 feet. Should it be doing that?

My RSL CG23s have a crossover threshold of 85, CG3s are at 100 and my SVS Prime Elevations are down to 55. I have one Sub, an SVS SB-3000. The various V.3 versions pretty much came in with reasonable crossovers ranging from 80 to 110 but the notice about changing the Low Pass Filter from the typical 120 to 250 puzzles me whether it's for the Master or DEQ versions. It sounds okay but it just seems to be far from the norm.

@ocaudiophile ... You know it's working when... when you find yourself listening to an entire album when you were supposed to be listening to some test tracks! A couple of quick questions... When the log reports; "[IMPORTANT!] Subwoofer volume adjustment required: 3dB." I assume that this is this something that Evo handles, rather than an instruction? Secondly, the log reports; "[WARNING!] SW1: 5.90 meters, please SWITCH this subwoofer's POLARITY! [IMPORTANT!] Reminder: DO NOT FORGET to physically switch the polarity of subwoofer(s) as instructed above." ... but this is not the correct distance of the sub. What should I do? Change the polarity? Change the distance within the amp? BTW I ran your script using REW Beta 42 with default EQ target type set to 'None'. I can't find a newer Beta... yet.

Hi, thank you for sharing your enormous expertise in audio calibration, please through some light on car audio tuning like helix/audison/jl audio software, eagerly waiting You are exceptional talented guy

Danke!

Thanks!

Thanks OCA! My script keeps getting stuck on "Optimization process (version 1.3x dated 14 Jun 24) started... 5:52:36 PM [LOG] Transposing measurements from '3' different microphone positions to the primary listening position..." and eventually says "load failed". Can you help troubleshoot?

Hi, how do I access REW Beta version 43? I only see 42 when I click on the link for the dowload.

Hey this is sounding great! Bass is on point with the OCA Soft target curve. I do have one question though, I found custom midrange compensation beneficial, as there is some unwanted boost in the driver crossover frequencies for my speakers which is not there when I use the pure direct sound. I'd like to apply a dip where the drivers on my speakers cross-over. Can I do that directly in REW with a PK filter perhaps, or how would you suggest applying a custom mid-range compensation dip? If the PK filter is the best way, which measurement should I apply it on?

Thanks!

Hi OCA! Trying V3X and when i force Small Front i get 40hz crossover on my Bookshelfs 906.Whitout forcing Small script sets them as Main + LFE. Is normal? Thank you

Love the work, I'm waiting to jump to V3x but I don't see beta 43 out, should I wait or use beta 42?

I can't get the script to run. Once I click "Start Optimisation" it just hangs on the line: "Transposing measurements from '8' different microphone positions to the primary listening position..." and doesn't do anything. API is running, measurements are imported. Looking at Safari Web Inspector shows it is running 'process-result' over and over and when I inspect each instance o that process, it's identical data with 8 measurements. Mac, REW 5.40 Beta 42. Any help is greatly appreciated.

Thanks - you have turned good into Great

Thanks for the update! Tried to run it just now on REW Beta 42 and got a "java.lang.ArrayIndexOutOfBoundsException: 3104" error in REW...the script seemed to execute fine though, at least it finished and gave me *.ady files to save.

Has anyone compared this to Dirac Bass Control? Looking to buy the Dirac bundle.

Thanks, from galonzo on AVSForum :D

A1 Evo v3x released just now (13 July 2024 21:45 CET) Edit: silent update @ 08:52 CET on 14 Jul 2024 fixing falsely prompted "limited lpf" with 2 sub standard bass systems. Compatibility: • Requires REW Beta version 43 or above for best results (a bug with persistent Subwoofer EQ target type that could cause minor variations in sub alignment has been fixed in that version). Updates: 1. Microphone calibration file correction to imported measurements for certain receivers: o Models with Cirrus Logic DSP chips displayed incorrect high frequency responses in REW. 2. Extended crossover frequency range analysis: o Large speakers will now be analyzed for up to a 90Hz crossover frequency during optimization. 3. Subwoofer lowpass filter frequency: o Bass extraction LPF setting is limited to 80-90Hz if there is just 1 subwoofer or 3 subwoofers to avoid bass localization. 4. New customization parameters: o Following customization parameters can be selected directly from the optimization screen: ▪ forceSmall (default value: 'false') - If 'true', front speakers will NOT be set to 'Large / Full range', ▪ forceCentre (default value: 'false') - If 'true', front speakers will be set to 'Large'. 'Subwoofer Mode' in the AVR will need to be set to 'LFE', and subwoofer(s) will be time-aligned to the 'Centre' speaker, ▪ forceLarge (default value: 'false') - If 'true', front speakers will NOT be set to 'Small'. ▪ noInversion (default value: 'false') - If 'true', avoids subwoofer polarity inversion. This may limit alignment options and could negatively impact sound quality but is necessary if your subwoofers do not have polarity switching capability, ▪ forceWeak (default value: 'false') - For systems with less powerful receivers and/or identical speakers. If 'true', all bed channels will be crossed over at 80Hz and all Atmos channels at 120Hz. If you regularly listen at loud volumes, this option will avoid LFE + Main mode and relieve your receiver and speakers by directing all bass signals to the subwoofer(s), ▪ limitLPF (default value: 'false') - If 'true', limits lpf evaluation frequencies for even number of sub(s) to avoid bass localization in 'LFE + Main' mode - odd number of sub(s) are automatically limited. o Additionally, from inside the script (line 253) ▪ forceMLP (default value: 'true'; If 'true', only the first mic position measurements will be used in most calculations. If 'false', all of the measured mic positions average will be used, o Please note that the above options are for special cases and Evo will perform best with the default parameters for most set ups. Enjoy the enhanced audio experience! Best, OCA ************************************************** Important ******************************************************************************************************************************************** A bug in REW Beta is causing slightly off SW time alignments. The complete fix will be coming in the next REW Beta (Beta 43). In the mean time, you can change default EQ target type in REW from "Subwoofer" to "None" before importing measurements and running Evo. I didn't want to keep you waiting any longer and waste the weekend. REW Beta 43 will hopefully be released tomorrow.

Hello Master OCA.Have tried to test v3 on completely new measurement with 8 positions. Got such warning: 7:50:54 PM [WARNING!] The distances/delays between your speakers/sub(s) are by default above hardware limit of 6m! 7:50:54 PM [ERROR!] It's technically not possible to correctly time align them. Optimization cannot continue! REW version V5.40 beta 42, audyssey v1.11.0 Can it be that i made too many measurements? Before i had no problems with 3 or 6, but other version of REW link drive.google.com/file/d/19UqUmYxbqXhVRfG8xAz27m6nAgryMXns/view?usp=drive_link

In V3 the clarity is better and of the main speakers the most. But the bass is way to much and main speakers and amplifier have to work hard. I have big main speakers but not for lfe. Setting lfe+main and bass lpf at 150hz. So in conclusion v2.3x bass is nicer listening to, but the clarity of v3 is better. So is with v3.0x this combined?

My Denon AVR-6700 only supports two subwoofers. I am running four identical 12" Klipsch downfiring subwoofers with two y-adapters. The Audyssey app and therefore the EVO script are only aware of two subwoofers. I have two subwoofers in the front of the room connected to the Subwoofer 1 port. I have two subwoofers in the back of the room connected to the Subwoofer 2 port. All four subwoofers are close to the wall but generally aimed at the main listening position. This was the message I received from EVO: 4:10:00 AM [WARNING!] SW1: 5.86 meters, please SWITCH this subwoofer's POLARITY! 4:10:00 AM [WARNING!] You will need to switch polarity of EACH of your 2 subwoofers! 4:10:00 AM [IMPORTANT!] Reminder: DO NOT FORGET to physically switch the polarity of subwoofer(s) as instructed above. 4:10:00 AM [IMPORTANT!] If your sub(s) don't have a physical or app controlled phase/polarity switch, you can change polarity of your front main speakers. 4:10:00 AM [IMPORTANT!] You DO NOT need to repeat Audyssey measurements after subwoofer inversion(s), optimization calculations already account for that. I interpreted this to mean I should change the phase from 0 to 180 on all four subwoofers, which I did. Was this the right move?

Hi! I know a new REW Beta is coming, so I am waiting to use your script. I *just* got a sub and using 2x Nubert nuBoxx b-40 in 2.1 setup. I did my first calibration w/ the sub from the MultEQ app. MultEQ is setting my Fronts to large and had set a checkmark to the sub "isReversePolarity", as I can see in ratbuddysey. (The sub is at default settings and -10db, normal polarity). What do I do? Clear the checkmark in the .ady file with ratbuddysey? (I can only GUESS that Audyssey set the sub to reverse polarity since it set the fronts to large, I already changed the fronts to small in AVR and 80 crossover of course).

@acaudiophile Thanks again for your continuing work - really appreciated by so many of us here. A couple of issues I have noticed. I have just downloaded and run v3 (using REW Beta 42) and the resulting curves shown in REW show two 'FL' results - the FR is not there... is this an REW issue? Will this result in a faulty .ady output by the script? Also, Is it OK that the SW is reported at the wrong distance? All other speakers measure OK - is this an issue with the initial ady or with Evo?

Thanks for the secret sauce serving 🤪

'Thank you' isn't enough to express my gratitude for all your efforts in creating sound we could never have imagined. The world would be a much better place with more people like you.

Is there a way to remove the sub EQ from this process? I plan on doing that myself in MiniDSP with rew+UMIK1.

stupid question, Whats the difference between Aud ONE and EVO ?

When I was doing the measurements, the Audyssey app had me lower the volume of my four subwoofers (2 y-adapters) to 2.5 (to get them in the green). In a previous comment, @ocaudiophile recommended leaving the subwoofers in the green to do the calibration. Now that I have installed EVO, will it screw everything up if I bump up the subs a bit? It seems like having all the volume knobs turned all the way down to 2.5 really limits the bass. I was thinking of bumping up the subs to about 3.5. All four subs are identical.

I just transferred EVO's optimization to my Denon AVR-6700. The most concerning thing might be that my small surround back speakers were set to large and the crossover was set at 60hz. My surround back speakers are small and have always been recognized as small by two different receivers. The crossover has always been automatically set at 110 or 120. Still, I haven't changed anything except what EVO told me to change in the log. I want to put it through its paces before I tweak anything.

hi, i just ran v3 and im getting a massive null in my front left at around 320hz. i havnt had this with any other of the versions, i have even ran another cal just to be sure. Any idea what maybe causing it?

The latest V3 makes my XXX.ADY file, about 4mb smaller then V2.3 ??

My Denon AVR-6700 supports two subwoofers. I am running four subwoofers with two y-adpaters. When I ran the Audyssey MultiEQ app, it had me turn my subwoofers all the way down to 2.5 (out of 10) to get them in the green. Should I put them on 5 and take the measurements again before I enter the results into EVO? I'm getting very little bass from these measurements.

Wow this is incredible and I have just found this at the perfect time. I just installed 2 more subs and have run REW, time aligned, and calibrated all 3 subs as one. So I assume I just treat the 3 subs as a single subwoofer when I re-measure on my Marantz and then bring into REW? Can't wait to run your script and see what it does to my system.

Is there an archive somewhere with older versions of A1 Evo (and possibly the changelogs)?

Thanks, hands down the best upgrade I have ever done to a system. My overheads sing and my subs now get a work out. Thank you so much!

It just keep's getting better and better! OCA is the GOAT!

Hi great video but unfortunatly the file cannot be imported into the Minidsp flex

My original file set subs to 13.8 feet and the new file sets them to 25 feet. Should I keep what the new file set or revert?

for some reason, program gets stuck at " Please keep REW on 'SPL & Phase' tab, close any child windows and stay on this web page until optimization is completed!" . Using the latest REW, already increased max measurements to 64 on REW,API server running and still not working. Up until 2.3 had no problems running it. If anybody has any idea, thaks in advanced.

As said on AVS, knowing I can rely on this project helped my decision to replace my Anthem 1140 with a new Denon A1H. It definitely helped my 6500 compete with the Anthem, and has also saved me money on a dirac license or paying for a pro calibration

🎉🎉

Hi, there seems to be some problem with my file. file name: may2024.ady - hoping this file will be in your server. I appreciate if you can take a look at it. this file worked with Audyssey One, but it asked me to enter center channel distance. In EVO no such prompt, process just hung without giving any updates. thanks for all your hardwork. - Rao