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Audyssey FAQ and New User '101' Help & Setup Guide
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Onkyo TX-NR818 "official" owner's thread discussion - Page 173
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- kbarnes701
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Igor has posted that neither Onkyo nor Audyssey can reproduce the situation he has described. I guess that pretty much terminates things from their POV.
- BIGBEAR2004
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The only differences I can hear between the two is the bass. It appears to me that Audyssey Dynamic EQ will try to bring reference bass levels at a lower listening level, where as the THX Loudness Plus bass levels is less aggressive and easier on less powerful subwoofers and doesn't appear to boost bass levels at lower listening levels. I personally prefer Audyssey Dynamic EQ for the bass.
Edited by BIGBEAR2004 - 2/24/13 at 10:42am

I tend to support Igor posting here as it adds visibility to Onkyo. Only Onkyo will release a few fix for 818 eq, not Audyssey. My assumption is there is an implementation issue in the 818. This discussion along with a couple others chiming in about sound quality and HDMI reliability has caused me to delay my purchasing decision and to look at other brands. Onkyo needs to understand that if a reasonable argument is made on the eq curve results in overdriving speakers past their physical limits this is not acceptable and should be investigated directly with the complaining user and not debated on a forum. I have seen nothing in Igors posts to indicate he has been contacted by Onkyo.
Sorry but Igor has not shown that MultEQ misbehaves. MultEQ's purpose is to flatten the frequency response and that's exactly what you can see in his own measurements.
You might disagree with Audyssey's approach to room correction, nevertheless it works as advertised.
I haven't received any mail, even in spam folder...
I tried US site, there they explicitly state that they will not support buyers from countries other than US and Canada. Then I checked their support forum and one moderator there promised to find a colleague of his in europe to take care for someone who was complaining. I add my request ther as well, I hope I will get somehow that firmware!!
- MadMyers
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I can reproduce it, so I'm wondering if someone out there has a similar setup who can try it...
Setup:
1) Have War of the Worlds Bluray
2) Have a Queen CD or quality AAC with "Don't Stop Me Now" (I've got the AAC version from Queens Greatest Hits)
3) Play War of the Worlds with DTS Master Audio on BD input and go to the chapter with the news lady @ around -20 dB and have Audyssey Dynamic EQ enabled (with Audyssey Music).
4) Simultaneously play "Don't Stop Me Now" on a source that feeds into TV/CD on the Onkyo --- you shouldn't hear it, but it just primes the data
5) Watch 10 or 20 seconds of bluray
6) Press the TV/CD button to switch to the Queen song, at which point you should hear the Queen music since you started it earlier
7) You should see the video from War of the Worlds and hear the audio from "Don't Stop Me Now"
8) Turn the volume down to -35 dB
The Queen song is going to have messed up / pulsing audio. It seems to be related to the piano playing. Listen to it for 10 seconds and I'm pretty sure you will notice it.
The audio is messed up regardless of the volume, but it's much more obvious at lower levels.
The audio can be fixed by turning Audyssey Dynamic EQ off and then on again. The pulsing goes away and the volume is much louder (without changing the level itself).
I'm doubtful the exact steps above are needed to reproduce it, such as the specific scene or music choice, but wanted to share how I've reproduced it 3 times.
To me, it sounds like Onkyo isn't telling the Audyssey hardware that a "source change" has occurred and Audyssey is applying the wrong corrections to the content.
Anyone out there have these two titles and want to try and reproduce it?
(Fixed some big typos which are now forever immortalized in kbarnes701 quote below)
Edited by MadMyers - 2/24/13 at 12:13pm
- kbarnes701
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I think I've found a bug in either Onkyo's implementation of Audyssey Dynamic EQ or Audyssey Dynamic EQ itself related to source switching. I'm guessing it's Onkyo's fault, but who knows.
I can reproduce it, so I'm wondering if someone out there has a similar setup who can try it...
Setup:
1) Have War of the Worlds Bluray
2) Have a Queen CD or quality AAC with "Don't Stop Me Know" (I've got the AAC version from Queens Greatest Hits)
3) Play War of the Worlds with DTS Master Audio on BD input and go to the chapter with the news lady @ around -20 dB and have Audyssey Dynamic EQ enabled (with Audyssey Music).
4) Simultaneously play "Don't Stop Me Know" on a source that feeds into TV/CD on the Once --- you shouldn't her it, but it just primes the data
5) Watch 10 or 20 seconds of bluray
6) Press the TV/CD button to switch to the Queen Song, at which point you should hear the Queen music since you started it earlier
7) You should see the video from War of the Worlds and hear the audio from "Don't Stop Me Know"
8) Turn the volume down to -35 dB
The Queen song is going to have messed up / pulsing audio. It seems to be related to the piano playing. It's to it for 10 seconds and I'm pretty sure you will notice it.
The audio is messed up regardless of the volume, but it's much more obvious at lower levels.
The audio can be fixed by turning Audyssey Dynamic EQ off and then on again. The pulsing goes away and the volume is much louder (without changing the level itself).
I'm doubtful the exact steps above are needed to reproduce it, such as the specific scene, but wanted to share how I've reproduced it 3 times.
To me, it sounds like Onkyo isn't telling the Audyssey hardware that a "source change" has occurred and Audyssey is applying the wrong corrections to the content.
Anyone out there have these two titles and want to try and reproduce it?
This alleged bug only affects people who want to view the video from a movie while simultaneously listening to Glamrock??? ;)
- MadMyers
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Absolutely! No better way to mash media!

Just so I'm not viewed as crazy, I had performed an Audyssey calibration and was checking out various content. I didn't actually want to see the War of the Worlds bluray while hearing Queen, but that's just how the TV/CD button works.
I would love to hear (pun intended) if someone can reproduce this. It would be better when I mention it to Audyssey and/or Onkyo if I can say someone else reproduced it.
- mogorf
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Absolutely! No better way to mash media!

Just so I'm not viewed as crazy, I had performed an Audyssey calibration and was checking out various content. I didn't actually want to see the War of the Worlds bluray while hearing Queen, but that's just how the TV/CD button works.
I would love to hear (pun intended) if someone can reproduce this. It would be better when I mention it to Audyssey and/or Onkyo if I can say someone else reproduced it.
While film sound tracks are always recorded to known levels called reference levels, music on a CD is not. Try the "Intellivolume" feature on your Onkyo for music CD playback.
Edited by mogorf - 2/24/13 at 12:29pm

I think I've found a bug in either Onkyo's implementation of Audyssey Dynamic EQ or Audyssey Dynamic EQ itself related to source switching. I'm guessing it's Onkyo's fault, but who knows.
I can reproduce it, so I'm wondering if someone out there has a similar setup who can try it...
Setup:
1) Have War of the Worlds Bluray
2) Have a Queen CD or quality AAC with "Don't Stop Me Now" (I've got the AAC version from Queens Greatest Hits)
3) Play War of the Worlds with DTS Master Audio on BD input and go to the chapter with the news lady @ around -20 dB and have Audyssey Dynamic EQ enabled (with Audyssey Music).
4) Simultaneously play "Don't Stop Me Now" on a source that feeds into TV/CD on the Onkyo --- you shouldn't hear it, but it just primes the data
5) Watch 10 or 20 seconds of bluray
6) Press the TV/CD button to switch to the Queen song, at which point you should hear the Queen music since you started it earlier
7) You should see the video from War of the Worlds and hear the audio from "Don't Stop Me Now"
8) Turn the volume down to -35 dB
The Queen song is going to have messed up / pulsing audio. It seems to be related to the piano playing. Listen to it for 10 seconds and I'm pretty sure you will notice it.
The audio is messed up regardless of the volume, but it's much more obvious at lower levels.
The audio can be fixed by turning Audyssey Dynamic EQ off and then on again. The pulsing goes away and the volume is much louder (without changing the level itself).
I'm doubtful the exact steps above are needed to reproduce it, such as the specific scene or music choice, but wanted to share how I've reproduced it 3 times.
To me, it sounds like Onkyo isn't telling the Audyssey hardware that a "source change" has occurred and Audyssey is applying the wrong corrections to the content.
Anyone out there have these two titles and want to try and reproduce it?
(Fixed some big typos which are now forever immortalized in kbarnes701 quote below)
Seriously? Sounds like Dynamic EQ is still "listening" to the Blu-ray and applying its correction results to the audio of the TV/CD input. Can you also reproduce it with different source material?

Your system is not able to reproduce low frequencies well. You believe the suggestion of adding a subwoofer is "idiotic". I thought you were having a listening problem receiving the helpful advice you have been given, but I was wrong. The reason you are unable to improve your system is much deeper then simply listening to those that can help you.
I did not waste any more of my time reading beyond this.
Yet again - I don't have a problem with subwoofer! It suits me very well. While adding a subwoofer will improve the sound in my room - I completely agree with that - it is in no help in solving my Aydyssey problem. Suggesting to buy more hardware that will not solve the problem someone having is the most useless suggestion that can be given.
Well, at least now you are providing some entertainment value.
- macuniverse
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Sure, I'm not saying not to raise the issue here. However repeating the same thing over 3 pages by the same 2-3 people will not add any more credibility to it.
I think Audyssey problem is separate from the rest. As I said before Audyssey is a licensed product, not Onkyo's own. I highly doubt Onkyo would change the Audyssey implementation without Audyssey's strict control and permission as it would create a serious brand and credibility damage. So any problem confirmation/solution/rejection should come from Audyssey. In practice Onkyo might release a fix (if the issue is acknowledged) but the go-ahead will come from Audyssey.
Good luck with your AVR decision.
- macuniverse
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The only differences I can hear between the two is the bass. It appears to me that Audyssey Dynamic EQ will try to bring reference bass levels at a lower listening level, where as the THX Loudness Plus bass levels is less aggressive and easier on less powerful subwoofers and doesn't appear to boost bass levels at lower listening levels. I personally prefer Audyssey Dynamic EQ for the bass.
I have not used the THX LP but the Aud Dyn EQ boosts the bass and sound stage at lower volumes. I found it useful for some tracks. But in other cases it distorts the music and makes the tracks boomy. So I use it on a case-by-case basis. If you don't want to fiddle with it I would turn it off.
Thanks.
- Jon Spackman
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Just do it yourself and be done with it.

I just picked up a couple new subs tonight. Jeff Meier has calibrated all 818 so I don't want to run a full Audyssey calibration but would like to make sure my sub levels are right. Is there anyway to do this without undoing all off Jeff's art? He will eventually come out and tune the new subs but it will be several new months before he is back in town.
Thanks.
He has examples of frequency graphs after audyssey and how off they can be on his website.
I am defiantly a novice at this but I can say the before and after was night and day. I have also read on here that Audyssey isn't real good at dealing with multiple subs either.
- wlhungdude
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He didn't do anything you couldn't have done yourself. You have to invest one way or the other... either the time learning what to do, or the $ to have someone else do it. The problem is, what he thinks is best may or may not sound better to you. I question why you would pay someone else to do it, without having expended the effort to know what he was doing. He didn't do anything you couldn't do yourself. Invest the time in yourself, and you'll never need to spend the $ for someone else to set it the way they like.

I haven't received any mail, even in spam folder...
I tried US site, there they explicitly state that they will not support buyers from countries other than US and Canada. Then I checked their support forum and one moderator there promised to find a colleague of his in europe to take care for someone who was complaining. I add my request ther as well, I hope I will get somehow that firmware!!

I have done listening tests with both and, TBH, didn't hear much difference. It's an interesting one to measure with REW so we can see what each one is doing. I have done that with DEQ on and off but not a comparison between DEQ and THXLP. Next time I have the REW gear out I'll measure both and see the differences. Interesting test. I'll be measuring next week after installing additional room treatments so I'll do it then. Will post the graphs here.
What I could suggest there is to measure not only fronts but also surrounds. Also to see the "dynamic" nature of Dynamic EQ you need to measure not only the different MV levels, but also different levels of input signal for each MV level setting.
It was advertised long ago that Audyssey is not boosting under F3 by the Chris telling this on his own support channel (even with explanation why is this happening, that completely in line with what I am talking)... So, it doen't work as advertised.

It is not the purpose of MultEQ to extend the bass range of the speakers (in room for those who do not understand again!). You could boost infinitely to make the frequency response 'flat' bellow natural acoustical roll-off point, I have shown that and that is the misbehavior! I understood already that no amount of evidence will be enough for you as your only purpose here is to stand for Onkyo products and deny there is any possibility of bugs in it. Are you working for Onkyo or selling their products? It looks like this...
You're still confused how MultEQ works. It applies boosts and cuts in order to achieve a flat frequency response. The boosts and cuts gradually stop below the measured in-room -3dB point. This is necessary to maintain a smooth frequency response in the crossover region. It can be seen in your measurements.
You want MultEQ to add an additional high pass. Sorry but that's just not a feature of Audyssey. I agree that such a high pass would be desirable in your specific case but it's not part of MultEQ's feature set and therefore it's not a bug.
Just like the lack of gapless playback is not a bug, the missing high pass is not a bug.
MultEQ gradually stops applying correction below the -3dB point. That's what is advertised and it can be seen in your measurements.
P.S. When do you provide the data that shows MultEQ is "Mis-estimating F3 lower than it is"? You've said that you have that data: http://www.avsforum.com/t/1412714/onkyo-tx-nr818-official-owners-thread-discussion/5130#post_23001280
Edited by markus767 - 2/25/13 at 5:28am
- kbarnes701
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I just picked up a couple new subs tonight. Jeff Meier has calibrated all 818 so I don't want to run a full Audyssey calibration but would like to make sure my sub levels are right. Is there anyway to do this without undoing all off Jeff's art? He will eventually come out and tune the new subs but it will be several new months before he is back in town.
Thanks.
As Jon Spackman says right below your post, just do it. Running an Audyssey XT32 calibration is easy enough. If you feel uncertain, read the Audyssey 101 and the FAQ linked in my sig for all the help you need. If you get stuck, call in to the Official Audyssey thread for more help. It is really easy to run the calibration.
And yes, it is essential to re-run Audyssey if you have made major changes to the setup, as you have with new subs. XY32 creates thousands of filters, especially so in the bass region. If you do not recalibrate, you will have the filters for the old subs in place while listening to the new subs - disaster!
- kbarnes701
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He was out doing my TV and did my audio for a small fee. He adjusted all of my crossovers and levels. I had previously run Audyssey and it wasn't close to being right and sounds MUCH better now.
He has examples of frequency graphs after audyssey and how off they can be on his website.
I am defiantly a novice at this but I can say the before and after was night and day. I have also read on here that Audyssey isn't real good at dealing with multiple subs either.
XT32/Sub EQ is very good at dealing with multiple subs - where did you read otherwise?
- kbarnes701
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well... defiant novices usually don't get a lot of love here.

He didn't do anything you couldn't have done yourself. You have to invest one way or the other... either the time learning what to do, or the $ to have someone else do it. The problem is, what he thinks is best may or may not sound better to you. I question why you would pay someone else to do it, without having expended the effort to know what he was doing. He didn't do anything you couldn't do yourself. Invest the time in yourself, and you'll never need to spend the $ for someone else to set it the way they like.
+1
- kbarnes701
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I have done listening tests with both and, TBH, didn't hear much difference. It's an interesting one to measure with REW so we can see what each one is doing. I have done that with DEQ on and off but not a comparison between DEQ and THXLP. Next time I have the REW gear out I'll measure both and see the differences. Interesting test. I'll be measuring next week after installing additional room treatments so I'll do it then. Will post the graphs here.
What I could suggest there is to measure not only fronts but also surrounds. Also to see the "dynamic" nature of Dynamic EQ you need to measure not only the different MV levels, but also different levels of input signal for each MV level setting.
I will run the measurements later this week when I have to get REW out again (room chabges). I will include the surrounds in the THX LP vs DEQ comparison. I'll produce the graphs at three different settings of Reference Offset Level, which will simulate adjusting the MV without actually adjusting it (makes for more consistent graphs?).
EDIT - no that won’t work - THX LP doesn't have RLO - I will vary the MV instead for three different measurements - say -10dB, -20dB and -5dB, unless you have better suggestions.
Edited by kbarnes701 - 2/25/13 at 5:48am

You're still confused how MultEQ works. It applies boosts and cuts in order to achieve a flat frequency response. The boosts and cuts gradually stop below the measured in-room -3dB point. This is necessary to maintain a smooth frequency response in the crossover region. It can be seen in your measurements.
If it would be the -3dB point, then there would be no need to boost +10dB at this point - it would require no boost at all at this point. What you tell cannot be seen on my measurements.
- MadMyers
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I've been seeing strange lip sync issues since moving to my 818. I'm really picky when it comes to lip sync, more so than most.
The problem I saw after adding the 818 was that video was ahead of audio. You cannot fix this with the 818 since you can only add additional audio delay. Delaying HDMI video would require a huge amount if storage.
Note: if you have HDMI av sync enabled, the 818 does allow negative av sync adjustment. However, this is because "0" has now been defined as whatever compensation is needed as specified by your display. Put another way, 0 might really mean 100ms so -100ms would be zero adjustment. Anything more negative is treated the same. At least that's what my eyes and ears told me.
How did I fix it? I've disabled Audyssey Dynamic EQ. It definitely introduced audio latency, causing the video to be ahead of the audio. While I have no hard data to support this, it appears to introduce a variable latency --- not just a fixed one. When I have Dynamic EQ enabled, the lip sync seems to drift back and forth from being fair to annoying and then back to fair.
I played around with a DVRed episode of Big Bang Theory, so I did test this out with real content.
I do like Dynamic EQ for music, but it will be disabled for movies and TV.
Anyone else noticed additional (variable?) latency with Dynamic EQ?
Setup note: My display has low video latency, about 30ms. If someone had a display with higher video latency, it's possible the 818's audio latency adjust could solve their problem. Since my display is about 30ms latency and I'm seeing the video ahead of the audio with Audyssey Dynamic EQ enabled, that would mean Audyssey Dynamic EQ adds at least > 30ms latency (assuming the source is sending A/V exactly synched initially, which may not be the case). That sounds like a lot, I know...
Edited by MadMyers - 2/25/13 at 7:25am
I've owned Harmon Kardon, Denon, Marantz, and Onkyo. I am a Software Engineer in a field unrelated to audio or video home entertainment. Your faulty assumptions and mis-interpretations continue to grow.
Edited by dstew100 - 2/25/13 at 6:00am
deliver conclusive data otherwise we're going round in circles. This is the data I would expect:
http://www.avsforum.com/t/1412714/onkyo-tx-nr818-official-owners-thread-discussion/5130#post_23001010
If you can't convince anybody around here that there's a bug, you will have an even harder time convincing anybody at Audyssey or Onkyo.
- Onkyo TX-NR818 "official" owner's thread discussion
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