Individual Speaker Calibration Using Audyssey MultEQ-X Room Correction!

I dive into calibrating my speakers individually using Audyssey and REW.
Please let me know what you think in the comments, and if you have any questions let me know.
#Audyssey #SpeakerCalibration #roomcorrection
MULTEQ-X CORRECTION SPREADSHEET
docs.google.co...
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My name is Carl, I run a family-run business with my dad (Glen) and my brother (Mark) called HD MOVIE SOURCE. I love movies and all the tech that goes along with them. I love to talk about the quality of transfers a lot, it's an enormous enjoyment in my life. I love calibrating speakers, and subwoofers, encoding 4K content, sound, and anything techy. This is what I love to do. I'm also a big gamer with my brother and World of Warcraft also sucks up a lot of my time, LOL. Somebody has to do it right? Any questions please let me know.
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[@cheekster777]

Thank you, as always, Carl for another deep-dive video. 🙏🏻

[@hdmoviesource]

My pleasure! Thanks Cheekster.

[@danmaier2077]

Thank you Carl, as always a great video! Greetings from Austria (Europe)

[@hdmoviesource]

Thanks for watching Dan, much appreciated.

[@cafiveohsrockbandremix9254]

One thing I noticed about MEQ-X is that one can simply load the target curve files (eg. Harman Target) and Audyssey wll track surprisingly close to the curve. I tried the Storm Audio curves as a test and my LCR's matched the curves really closely, and MEQ-X automatically applied the low frequency rolloff. Not sure what method Audyssey uses to match the curves, but I plan to A-B compare the results with that method versus the trace arithmetic method that you have been using.

[@hdmoviesource]

Yeah, you could EQ your system to flat, then upload a target curve and it should match perfectly.

[@Hasa75]

Hello Mr. Carl. Another great video, i appreciate your work and the patience to explain how you do the things. For what i watch you only take the measurements at MLP, if´m correct, so please let me ask if you think is a waste of time taking multiple measurments? Thanks. Greetings from Portugal.

[@hdmoviesource]

Hi Hasa. I personally prefer the results from one position but I'm still experimenting with multiple positions.

[@rafaelsmith681]

Thank you for another great video. I have used your method for my speakers and have been very impressed. Not having luck with subwoofer however, with lack of ability to independently control the subwoofer gain its proving difficult. I think a MiniDSP might be in my future. Curious what your workflow is for subwoofer cal using REW & Minidsp.

[@hdmoviesource]

I also went back to MiniDSP. I may even give the ultra-high-end version of MiniDSP a look. It has even more resolution.

[@rafaelsmith681]

If starting from scratch then yes separates cost more or same as equal capable avr...but in 4 years when you want latest and greatest features then you only buying half the equipment since amps will last WAY longer and don't change.

[@hdmoviesource]

True. Unfortunately, I'd have upgrade syndrome, I feel like I'm missing out if I don't buy something, LOL. But I know what you mean. It's definitely a consideration Rafael.

[@ninohowald627]

Top

[@atx86]

First of all thanks for the comprehensive guide. I was able to get everything done in two hours except the subwoofer. How do you SPL align the sub to the target curve (which frequency)? If you align the curves at 1kHz where the sub obviously isn’t capable of producing any sound you will heavily tone it down.

[@hdmoviesource]

I might make a video about this but, pink noise from a subwoofer is 30hz to 80hz so the center frequency is 55hz, atx86.

[@mikeortiz2139]

Excellent Video. I was going to ask your opinion on Inversion vs EQ. OCA in his Audyssey A.R.T. video used EQ, but he also had frequency dependent windowing. Inversion, in my mind, makes me think that is all taken into account when measuring. Overall, I'm afraid of boosting a tweeter to the point where it gets fried. I have a 7.1.4 Auro Setup where it is to Auro-3D spec and my heights are pointed at my standing height above my MLP. Thus far, my calibration attempts haven't been successful blending some of OCA techniques without MultEQ-X and just the phone app. I'll give it another go this weekend. Also, would you care to share your Harman Target Curve?

[@hdmoviesource]

I know what you mean Mike about the Tweeter. I've been doing this method for about 6 months, and I haven't blown anything yet. However, you could only EQ up to 15K if you thought it was going to be an issue.

[@REW-yq6jd]

Sorry to disturb you sir but pls if you could clarify a few of my questions I would b really helpful....actually i asked these to OCA but he seems to be offline n didnot reply as yet..... ......just a couple of simple questions... 1. Are these *Creating EQ filters* methods same as methods of EQ filteration shown in the videos---- *Measuring Height Atmos Channels and Measuring Atmos Manual Callibration*--- in these videos you manually enter the Graphic EQ generated data by Optimasing gains into your receiver for each channel upto 16000..... Q2. What is the difference in manually entering the data(such as speaker distances,speaker levels,crossovers,graphic eq filters etc.) into the receiver and creating target curves for each speaker and then exporting that data as adv file thru multi eq editor app into the receiver??? I hope both my questions are clear to you... Reply soon...thanks😊

[@hdmoviesource]

Hey, yes, this is the same method as what OCA is using. I copied his method; it's excellent. I believe that target curves in MQX are better than PEQ filters. I've never seen PEQ filters work as well, and have as much detail as target curves in MQX app.

[@jonathantaylor1458]

I just picked up the SACT blu ray as to me that seemed the easier method personally, for the calibration. Did you find you still got good results using their test tones when you did your individual speaker calibration? And when you were all done did you just level match them all using an SPL meter? And set the speakers to a certain DB? Your videos have easily been the most detailed and easiest to follow I’ve ever watched, they’ve given me a real confidence I can do this on my own system. What really struck me is you made a comment “if you turn Audyssey off and your system sounds better you have an issue” I have always felt my Revel Performa3s have underperformed after calibration with Audyssey, I just happened to try and turn it off and immediately noticed an improved difference.

[@hdmoviesource]

I did yes. I've been using their full range pink noise for some tests. I don't use the SPL meter per se. I use an RTA and measure the average volume. I feel as though I get better results that way vs SPL.

[@jonathantaylor1458]

@@hdmoviesource when you use REW and the RTA for level matching, which section on the SACT Blu-ray do you run? Still just the periodic pink noise?

[@hdmoviesource]

Yes, and then record with an RTA for around 200 cycles to get an average volume.

[@Striderman300]

I think I see how you could use the OCA files to generate "EQ" curves for the Atmos speakers, but how would you use REW to confirm? Great video by the way. I have a very good sounding calibration right now using auto EQ and importing a Harman target curve, but the next time I feel a need to tweak, I want to try this method.

[@hdmoviesource]

Nice Striderman. I'm very happy with this method.

[@randyrevak5085]

I have thoroughly enjoyed your videos. I have a basic question regarding MultEQ-X. Once a file has been imported to a speaker channel, how would I remove it back to zero. It seems that when I want to fine tune a file and re-import it, it adds on top of the original.

[@hdmoviesource]

Oh right. Yes, you have to load the file, and X the file out, and remove it from that speaker.

[@SunnySkiesInAZ]

So you can load target curves into Dirac, but it doesn’t work like it does with MultiEQ-X. I followed this process and input the target curve into Dirac. Instead of correcting my frequency response to match the desired Harmon curve, it match my response to the correction curve I input.

[@hdmoviesource]

Really? Yeah, I've been checking out a few Dirac calibrations and I was thinking, I don't think this method is possible. Can you import an FIR filter? Because that's essentially what this is. I'd love to mess with Dirac for about a month just to see what I can do. Some how I think Audyssey lucked out this system, and now the ultimate way to calibrate speakers. Can you import EQ? With Dirac?

[@JavonDGreen]

No you can’t. 😢

[@hdmoviesource]

That's a dealbreaker for me.

[@JavonDGreen]

@@hdmoviesource so I followed your instructions. I varied them a little bit. I have an Emotiva processor that has Dirac. However Rew can import and export directly into the XMC2 from the equalizer tab in rew. Worked like a charm. It sounds awesome. It’s not quite as good as Dirac. However I’m a tweaker with a passion just like you. I will have a calibration that beats Dirac within a month.

[@hdmoviesource]

Sweet. Yeah, I just keep grinding until I find the best way of doing something.@@JavonDGreen

[@Game_Impala]

In one video, you showed how you only downloaded the frequency range you wanted. Whereas, in this video, you are downloading the full range, then overriding the amounts to 0 up to the range you would have originally downloaded. What's the difference in having 0's from 10 to 50 Hz vs just downloading and loading 50Hz and above target curve?

[@hdmoviesource]

Typically, from what I've seen the curve doesn't finish correctly if you don't explicitly say zeros. I do have a easier way of doing this without a spreadsheet though.

[@Game_Impala]

Would you mind sharing?

[@Game_Impala]

Could you just override the first and last two lines to 0 and achieve the same result? I.e. 49.5 hz 0.000 49.87 0.000 50.0 -0.012

[@hdmoviesource]

Here's my correction file, what you can do with this file is copy and paste points of the target curve that you want no influence. No influence is setting the target curve to 0. So you can do this for bass and for treble areas - drive.google.com/file/d/1TnPY_mzQBy6WmDH2ggsAjW9uCI9FmPIq/view?usp=sharing

[@Game_Impala]

@@hdmoviesource awesome! thank you. I when I do the |A|/|B| for my center, my treble is way too high. I guess I need to choose somewhere to go to 0 around 10k or so?

[@Grippoish]

Learning a ton from your videos. But I'm still struggling to find an answer about setting a subwoofer low pass. Howcome there's no mention of this with respect to how it interacts with the mains highpass of 80Hz? It just looks like you're smoothing out the natural high end roll-off of the subwoofer, regardless of the bass management settings. Why is that? I've typically created a custom low-pass and applied it only to the subwoofer, based on the L+R target/predicted roll off/high-pass frequency. Is this the wrong approach?

[@hdmoviesource]

The subwoofer HPF for LFE should be set to 120hz, and the crossover for speakers should be set to the performance of those speakers. Most of the times 80hz works well for crossovers, but others like 90hz to 110hz can work well too.

[@larry9079]

Hi I was wondering if the 7.1.4 DolbyAtmos pink noise download form dolbys website could be used as the same method you mentioned using the joe and tell blueray and rew

[@hdmoviesource]

Absolutely yes. It needs to be full range pink noise which I think it is. If it is, it should work.

[@larry9079]

​thank you i will keep that in mind and try it one day. Thanks again for your videos they helped me allot

[@hdmoviesource]

Any time Larry.

[@thachucqy]

Do you have any idea how much different outcome would be on receiver with Multeq xt vs multeq xt32? I am shopping for new AVR and don´t really know if paying extra for receiver with multeq xt32 is really worth it when calibrating with this method. Thank you!

[@hdmoviesource]

I honestly don't know, that's a good question. I might ask Audyssey, what the benefits would be. I think its improvements are in the sub-channel. I think you'd be able to achieve similar results for the speakers.

[@kyle.fredrickson]

trying to follow your workflow but in my notepad the transition from positive boosts to negatives happens at 100hz not the 47 or so in yours..,, and then have a bunch of random positve boosts sprinkled in such as in the 500 range, 2000 range, etc. It seems from your video its all positive until 47 when it switches to negative

[@hdmoviesource]

What resolution to export to text at? Try exporting at 96 PPO, and see what the ranges look like after that Kyle.

[@kyle.fredrickson]

@@hdmoviesource yeah no difference. The .txt is boosting until 100.15 then goes negative until 221 where it goes positive again until 400, negative again until 512 and so on so forth

[@hdmoviesource]

I would try and make sure you go at least up to 80hz, and then zero out the rest from there I think. I have a rear surround that I need to boost by +5 or so too.

[@rafaelsmith681]

I had a similar result and what I ended up doing is just zeroing out anything below 80hz....my side surrounds and ceiling speakers required some boost here and there...so far no problems. I pretty much used the specs of the speakers to decide where to roll off in the trouble as well....which for the most part matched what the exports showed. I still not sure the sub cal came out correct as I still have drop in response around the xover point.

[@hdmoviesource]

Yeah, I'm finding that just going to 80hz is totally fine. Most speakers should have issues with that. I went back to the Mini-DSP for the sub, wasn't getting the results that I'd hoped for with MultEQ-X.

[@drsomparkashverma6174]

Sorry to ask but how your videos are different and superior to the ones by OCA...pls dont mind

[@hdmoviesource]

Same as OCA. I took what I learned from OCA. I'm just using MultEQ-X instead of the Audyssey app.

[@drsomparkashverma6174]

Appreciate

[@hdmoviesource]

No problem.

[@rafaelsmith681]

My surround back speakers which are identical to my LCRs end up with a totally different "export".... as in negative gains stop at 157hz where as LCR are @around 80HZ...and rollloff at around ~17k. Rears show rolloff at around 10k. At 80z the rears show gains of +6ish which seems like alot. Also the rears bounce around postive/negative (mostly positive) gains all they way from 157hz up. Not sure how to edit these exports for import into MultiEQ-X. Any idea why this might be happening? All 3 LCRs pretty much came out similar to eachother. I have tested swapping speakers around and in the LCR position they all behave pretty much same so dont think its bad speakers. I think its something about the position in the rears but seems extreme....nothing odd about their position except a foot or so higher than the LCR due to riser. These are PSA MT110 "bookshelves" which are huge.

[@hdmoviesource]

It depends on how the room is affecting bass. In this situation, what I do is roll the speakers off at 80hz, and I mean with the spreadsheet. Just allow EQ up to 80hz, then set everything to 0 after that point.

[@shadowking99]

Thanks carl, did you / do you now keep the auto-leveling option on multeqx on or off? not sure if i missed it in your video.

[@hdmoviesource]

I keep it on for all channels, however if you use MQX to calibrate the sub it needs to be off.

[@shadowking99]

@@hdmoviesource but doesn’t it affect the amount of boost / cuts mult eqx applies after you do your level matching on rew?

[@hdmoviesource]

@@shadowking99 Well, really it just averages your response, so it keeps the relative level roughly the same. You can turn it off, I prefer on for full range speakers.

[@kyle.fredrickson]

dumb question but would you do this for all speakers first and then do subwoofer or subwoofer first and then do each speaker?

[@hdmoviesource]

Hey Kyle, I do this for all speakers first, then do my subs last. I think that's the best way because the sub can be complicated.

[@kyle.fredrickson]

@@hdmoviesource thanks! So you're just doing an initial audyssey measurement to get your distances, crossovers, etc., and then not "including it". Sending that back to receiver and then moving on to using rew for each individual speaker + sub?

[@mikeortiz2139]

@@kyle.fredrickson I think he tests each speaker full range and EQs. Then sets the EQ in MultEQ:X and the avr will take care of the roll off with its digital crossover for each speaker.

[@hdmoviesource]

Yes.