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Post by megash0n on Sept 15, 2020 7:16:56 GMT -5
Hopefully this will clear everything up with this calibration issue. I'm going to adjust the volume screen so that all speakers measure equally, not "calibrate" equally. A few of you have really similar outcomes to what I'm getting. We're just getting wrapped around words and not really understanding what's going on here. Dirac will make everything level after filters are developed for sure. That never was the discussion. What the discussion was about was how it was occurred, and to what expense if you get varying levels of spl during measurements. So, if you mains are measuring higher than your sub for example, you will lose headroom on the mains because they have to play with the sub. Anyways, I won't repeat the whole scenario again. 🙂
Jordan Matthiass commented:
Hi Shawn,
Thanks for the clear explanation of the issue. One thing we are working on moving forward is a better alignment between SPL on the calibration stage and the measurement stage, as the noise played during calibration does not always accurately reflect the SPL that will occur during measurement sweeps. (We are, for instance, discussing using the same frequency sweeps used in measurement as the calibration tones, instead of noise, in order to "bridge the SPL gap.") So, it's not entirely unexpected that there's a volume discrepancy, and we're hoping to improve on it. As I mentioned before, getting levels into the green zone during calibration is not as important as getting good measurements (no clipping, no excessive SNR, etc.)
Which leads to the subwoofer discussion. What is most important is that the volume of all speakers during measurement are roughly equal. The easiest way to do this might be to turn up the volume knob on your sub by about 10dB, or adjust levels during calibration to account for the discrepancy you've noticed in your setup. Again, the "zones" on the calibration page are meant to be guidelines, not rules. The measurement stage matters infinitely more than calibration. As long as your speakers output evenly during measurement, you should be good.
Hoping this clears things up, and thanks for reaching out!
All best,
Jordan@Dirac
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Post by megash0n on Sept 15, 2020 7:22:27 GMT -5
Are you only using the sub slider as the gauge for making the sub volume adjustment? Or are you using an SPL meter? If you are using the meter, then ditch the meter and ONLY use the Dirac slider gauge to get the sub adjustment into the green so it shows EXACTLY the same level as all the other speakers on their slider gauges. When I set my sub I only used the Dirac screen to make the setting be the same -22dB level as the other speakers. Trust the Force Luke. You’re misunderstanding his point. If you level match the sub using the slider, it’ll match on the level calibration screen, but the sweeps that play have the subs play 10dB louder than the other speakers. I experience that also, but I don’t believe this is a problem. He’s seeing results that make him question that. You almost have it. My subs are playing at calibration level, 10ish db less than ALL other speakers. Everything else, as most of you have confirmed, is playing 10 to 16 db louder when measuring. Therefore, Dirac MUST attenuate 10 db to bring it all down to my sub, plus the 10db for boosting headroom if needed. This really was my only question or issue. The good news is Dirac cleared it up for me and I understand how to move forward.
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Post by megash0n on Sept 15, 2020 7:29:41 GMT -5
You’re misunderstanding his point. If you level match the sub using the slider, it’ll match on the level calibration screen, but the sweeps that play have the subs play 10dB louder than the other speakers. I experience that also, but I don’t believe this is a problem. He’s seeing results that make him question that. Yes, the Volume Calibration adjustment sweeps for the subs play at a different room SPL as measured with a handheld meter, which is the way it should be and doesn't matter. The important part is to set all speakers and subs to register the same on the sliders. The measurement sweeps will then all play within a 2 or 3 dB of each other. I'm only trying to verify how he is going about making the adjustments. When he adjusts the subs, is he looking at the green gauge on the sliders and matching the subs to all other speakers? Or doing something else? I follow the one guide that says to leave the slider alone and to adjust the sub amp gain so that the level is the same, on the volume calibration screen, as the rest. I'm quite confused on why you say it doesn't matter what an spl meter says. How else would you actually verify the software is functioning correctly? If Dirac measures a channel 5 db off from the others, it absolutely is going to make changes because of that. If you guys are saying otherwise, we can't agree on this and that's ok. "It doesn't matter" is one of those pet peeves of mine. It may not matter to you, and that is absolutely ok. It absolutely matters to me when I'm dealing with a processor that I don't trust as far as I can throw it. I do like things to work as expected. Without that, you do not have a controlled outcome. Thank you all for trying to help sort this out.
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Post by megash0n on Sept 15, 2020 7:32:21 GMT -5
This is basically what I do following the other sticky guide. One thing that is interesting is that it discusses how it will or will not add an additional 10db for subs depending on your setup. This is not happening for me. Regardless, my point is that, when you go to the measurements section, all speakers, besides the center sub, play at least 10 db louder than they were set on the volume calibration screen. ttocs has confirmed this as well. I've opened a ticket with Dirac to understand if this is a bug or on purpose because it doesn't make sense. Now, I feel there is something to setting the mic properly instead of just going with 100 . I think the sweet spot for me is around 95. I thought it was better to lower the mic sensitivity and instead up the volume to get better readings. I think even Dirac mentions this on their help. I have run Dirac cals on 100%, 86% and 81%. Ended up using 86, but 81 worked fine as well. anything above -37.5 master volume for me is way too loud to measure. I am going to use a lower mic next time though since Dirac confirms the green part is irrelevant.
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Post by steelman1991 on Sept 15, 2020 7:49:37 GMT -5
This really was my only question or issue. The good news is Dirac cleared it up for me and I understand how to move forward. For others looking for a solution, how are you deal with this moving forward?
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Post by ttocs on Sept 15, 2020 10:10:28 GMT -5
I follow the one guide that says to leave the slider alone and to adjust the sub amp gain so that the level is the same, on the volume calibration screen, as the rest. And does the slider for the subs match the sliders on the other speakers? ie Speakers: -24dB, Subs: -24dB according to the sliders. I'm quite confused on why you say it doesn't matter what an spl meter says. Because it doesn't matter. Dirac does the work so nobody needs an SPL meter. Look at the sliders, match them up, done. If the results were bad, then I would pull out the test equipment to substantiate what is happening and send that info to Dirac to ask "Is this correct?" Dirac says to match all the sliders to the same level, so I do.How else would you actually verify the software is functioning correctly? When I am getting good results there is nothing to verify. If Dirac measures a channel 5 db off from the others, it absolutely is going to make changes because of that. When I setup Dirac, all the sliders are the same. When Dirac measures, all the sweeps are the same. After Dirac is finished, if I measure using the test tones on the processor, all speakers are within a couple dB of each other including the subs. Not enough for me to want to adjust except IF the Left and Right were different then I would adjust those, and when I've done that in the past it was by ear to get the sound in the middle.The ONLY reason I began measuring the SPL difference between the Cal and Measurement phases of Dirac was because folks were saying they were getting clipping errors. It is obvious that there is an output difference between setup and measure so I set out to discover what that diff is and settings that might affect it. Since I don't get clipping or SNL errors I became interested in figuring out what might be going on. Coupled with that was the issue you were having with your subs being way low. So I figured there might be a correlation in this. I believe you think this also, so my question remains, when setting up for a Dirac run do you rely only on the sliders to make all adjustment and make all sliders match? Better yet, just post a screen shot of the Volume Calibration screen along with the resulting Filter Design screen, maybe just showing the L&R main speakers along with the subs because it's easier to see.
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Post by megash0n on Sept 15, 2020 10:32:44 GMT -5
I follow the one guide that says to leave the slider alone and to adjust the sub amp gain so that the level is the same, on the volume calibration screen, as the rest. And does the slider for the subs match the sliders on the other speakers? ie Speakers: -24dB, Subs: -24dB according to the sliders. I'm quite confused on why you say it doesn't matter what an spl meter says. Because it doesn't matter. Dirac does the work so nobody needs an SPL meter. Look at the sliders, match them up, done. If the results were bad, then I would pull out the test equipment to substantiate what is happening and send that info to Dirac to ask "Is this correct?" Dirac says to match all the sliders to the same level, so I do.How else would you actually verify the software is functioning correctly? When I am getting good results there is nothing to verify. If Dirac measures a channel 5 db off from the others, it absolutely is going to make changes because of that. When I setup Dirac, all the sliders are the same. When Dirac measures, all the sweeps are the same. After Dirac is finished, if I measure using the test tones on the processor, all speakers are within a couple dB of each other including the subs. Not enough for me to want to adjust except IF the Left and Right were different then I would adjust those, and when I've done that in the past it was by ear to get the sound in the middle.The ONLY reason I began measuring the SPL difference between the Cal and Measurement phases of Dirac was because folks were saying they were getting clipping errors. It is obvious that there is an output difference between setup and measure so I set out to discover what that diff is and settings that might affect it. Since I don't get clipping or SNL errors I became interested in figuring out what might be going on. Coupled with that was the issue you were having with your subs being way low. So I figured there might be a correlation in this. I believe you think this also, so my question remains, when setting up for a Dirac run do you rely only on the sliders to make all adjustment and make all sliders match? Better yet, just post a screen shot of the Volume Calibration screen along with the resulting Filter Design screen, maybe just showing the L&R main speakers along with the subs because it's easier to see. I did post some screenshots last week. I'll have to set everything back up to take more, but I'm planning to rerun everything again anyways. To answer your question about the volume calibration screen, all channels show being within .2 db of each other. I find my softest speaker, left surround, and then drag the level down for all remaining speakers to match the softest one. For the sub, I leave that one at the top and adjust the sub amp gain until it is equal to the others as well. It really shouldn't matter whether you are using the volume slider (assumed to just be a trim) or the amp gain knob for this purpose. All in all, all speakers are level, and sound level, on the volume calibration screen. They do not play level when executing measurement sweeps. Dirac has confirmed this is an issue and states that the measurements happening at a level and consistent spl are most important. I'm really confused on how you don't see your experience as a problem as well. I'm not talking about whether you are happy with the results or not, but your volume calibration says the sub is level to the rest when you have video evidence this is not the case. But, during measurements, your speakers all play roughly the same spl I believe. This is why I say you have a similar issue and you don't agree. We both show level on the volume screen. Yours is actually 10 db higher than the rest where mine is 10 db lower than the rest. When you run your sweeps, all yours match because you had that extra 10 db. I do not causing me to be 10 db short. This is what started my whole scenario of moving my subs a while back because Dirac was measuring me 10 db lower. I'll say again, Dirac is acknowledging this issue and has stated to adjust the volume calibration screen so that all channels actually measure the same to overcome the bug. You happen to be overcoming the bug by default due to how yours is working. I'd be interested to know if anyone else is seeing a measurable difference, with a meter, after leveling everything on the volume calibration screen.
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Post by bluescale on Sept 15, 2020 13:40:29 GMT -5
You’re misunderstanding his point. If you level match the sub using the slider, it’ll match on the level calibration screen, but the sweeps that play have the subs play 10dB louder than the other speakers. I experience that also, but I don’t believe this is a problem. He’s seeing results that make him question that. You almost have it. My subs are playing at calibration level, 10ish db less than ALL other speakers. Everything else, as most of you have confirmed, is playing 10 to 16 db louder when measuring. Therefore, Dirac MUST attenuate 10 db to bring it all down to my sub, plus the 10db for boosting headroom if needed. This really was my only question or issue. The good news is Dirac cleared it up for me and I understand how to move forward. Yep, I meant "lower." Not sure why I typed "louder" there. I'm thinking more about this, and I wonder how you've confirmed that your subs are playing 10dB quieter during the measurement sweeps. My confirmation came from listening, and noting that the measurement sweeps *seem* considerably louder for all the channels rather other than center sub. However, bass output is notoriously hard to guesstimate by ear, and most of us don't have SPL meters that are accurate at subwoofer frequencies. So my confirmation of your experience is subjective, and might not be valid. You've said before that you believe you're losing 20dB of headroom due to this issue. Have you done a sweep in REW before and after calibration? The loss of headroom would result in a corresponding loss of volume, or am I misunderstanding how all this plays out? My post-measurement REW sweeps showed that it didn't make a difference where the subwoofer level was set during volume calibration. I created a curve with the subwoofer volume matching all speakers on the volume calibration screen, and I created a curve with the subwoofer running about 15dB hot on the volume calibration screen. Both resulted in almost identical output in REW at the same volume on processor's knob. So again, how are you confirming that the results are wrong? I'm not trying to be argumentative, as I'm not 100% sure that my process is sound. I also think, based on the behavior we've seen with the G3P that it's *very* likely that different people doing the same thing will have different results. That's what I'm trying to get to - are we doing things differently, or are we getting different results?
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Post by bluescale on Sept 15, 2020 13:49:40 GMT -5
I'll say again, Dirac is acknowledging this issue and has stated to adjust the volume calibration screen so that all channels actually measure the same to overcome the bug. You happen to be overcoming the bug by default due to how yours is working. I'm not sure that Dirac has confirmed what you think they've confirmed. They stated that there is a discrepancy between what is played during the volume calibration screen and what is played during the sweeps. They have not confirmed that this will result in the addition 10dB of attenuation that you're concerned about. I'm not saying that you're wrong - just pointing out that there's an assumption on your part. My measurements didn't show any attenuation, which makes me feel it's a cosmetic issue. They also didn't confirm (unless I misread it), that there's a known issue with the sub channel specifically playing lower than the others. I'm zeroing in on this because the sub channel thing, if it really is a problem and not an observational/process error, could be an Emotiva bass management issue, a Dirac issue, or a combination of both.
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Post by megash0n on Sept 15, 2020 14:50:36 GMT -5
I'm not sure that Dirac has confirmed what you think they've confirmed. They stated that there is a discrepancy between what is played during the volume calibration screen and what is played during the sweeps. They have not confirmed that this will result in the addition 10dB of attenuation that you're concerned about. I'm not saying that you're wrong - just pointing out that there's an assumption on your part. My measurements didn't show any attenuation, which makes me feel it's a cosmetic issue. They also didn't confirm (unless I misread it), that there's a known issue with the sub channel specifically playing lower than the others. I'm zeroing in on this because the sub channel thing, if it really is a problem and not an observational/process error, could be an Emotiva bass management issue, a Dirac issue, or a combination of both. Ok. I am content with what they say, and can consistently produce what I am saying. They are both in alignment. This seems really straight-forward to me, but it is obvious we aren't going to agree that, what we all see is actually happening. At the risk of beating this dead horse, I'm happy to move on from it.
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Post by bluescale on Sept 15, 2020 15:22:14 GMT -5
Ok. I am content with what they say, and can consistently produce what I am saying. They are both in alignment. This seems really straight-forward to me, but it is obvious we aren't going to agree that, what we all see is actually happening. At the risk of beating this dead horse, I'm happy to move on from it. Tone is hard to gauge in forum posts, but I get the sense that you’re getting frustrated with what I’m saying. Sorry if that’s the case. This is important, and I want to make sure we get it right, which is why I’m asking questions and trying to challenge some assumptions. It’s nothing personal. I don’t think it’s a dead horse, as most people will run Dirac and assume the results are correct, so it’s important for those of us with the tools and the desire to dig in for their benefit. What I’m trying to clarify is what exactly you’re producing. That’s why I suggested focusing on what the end results are in REW. Have you created identical curves with the sub level playing low vs the sub level playing matched, and then compared the output in REW? I’m just asking for confirmation that you’ve done this, and if so, what’s the ~dB delta? I went through that process yesterday and my resulting REW sweeps look the same. I was pressed for time, and having a number of issues with REW, so it’s possible I did something wrong. I’m willing to try it again, more carefully (maybe in a 2.1 config to save time), but I’d like to understand what you’re seeing objectively rather than subjectively.
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Post by rhale64 on Sept 15, 2020 16:54:57 GMT -5
When I was getting my clipping errors I had set all my speakers in the middle. As megashon said., to a tee is how I did mine. I would get through one round of measurements then I would get the clipping error. Each time it would be with a speaker close to where the Mic was. I would then lower the levels for all speaker's a little more. Then rerun and make it further then get a clipping error again. I never had this problem on the first Dirac firmware I had. I believe 1.3or1.4. But 1.5 caused me to have to lower my left surround speaker down until it barely touched the green. That is my least sensitive also. Then I pulled all the sliders for each channel down to match except for the sub. I went into my SVS app and lowered my gain until it was even with the other speaker's. Never was the sub the culprit. Once it was my right front, then my left front top depending on what speaker was closest to the Mic. I always stopped and redid all levels then started dress again. This happened three times. And none of it sounded to my ears any louder than any other sweep.
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Post by megash0n on Sept 15, 2020 16:58:36 GMT -5
Ok. I am content with what they say, and can consistently produce what I am saying. They are both in alignment. This seems really straight-forward to me, but it is obvious we aren't going to agree that, what we all see is actually happening. At the risk of beating this dead horse, I'm happy to move on from it. Tone is hard to gauge in forum posts, but I get the sense that you’re getting frustrated with what I’m saying. Sorry if that’s the case. This is important, and I want to make sure we get it right, which is why I’m asking questions and trying to challenge some assumptions. It’s nothing personal. I don’t think it’s a dead horse, as most people will run Dirac and assume the results are correct, so it’s important for those of us with the tools and the desire to dig in for their benefit. What I’m trying to clarify is what exactly you’re producing. That’s why I suggested focusing on what the end results are in REW. Have you created identical curves with the sub level playing low vs the sub level playing matched, and then compared the output in REW? I’m just asking for confirmation that you’ve done this, and if so, what’s the ~dB delta? I went through that process yesterday and my resulting REW sweeps look the same. I was pressed for time, and having a number of issues with REW, so it’s possible I did something wrong. I’m willing to try it again, more carefully (maybe in a 2.1 config to save time), but I’d like to understand what you’re seeing objectively rather than subjectively. I'm more so frustrated in general. Not at you or ttocs. I appreciate the effort in digging in. I'm just really tired of this product to be quite honest. At this point, I cannot recall with absolute certainty what I have and have not done at some point or another. I am going to have to set everything back up and run these tests. What I do know is Dirac measures my subs lower. I hear it with my ears. I measure it will a meter. I see it on the Dirac measurement graph which I added to this thread. I'm going to have to take a step back and evaluate how to go about doing this testing because, once Dirac is engaged, your system losing the headroom anyways. One is going to have a difficult time really truly comparing what you are saying. I don't think curves are even important. We are simply talking about a measurement sweep here. A measurement sweep that we all say is happening louder than the volume calibration screen noise. Dirac confirms they aren't the same. When I level set all my speakers in the RMC menu, and run measurement sweeps in REW, my subs don't magically measure 10 db lower than the pink noise in the menu. I'll try to get all this stuff back out tomorrow or Thursday.
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Post by bluescale on Sept 15, 2020 17:44:45 GMT -5
I'm going to have to take a step back and evaluate how to go about doing this testing because, once Dirac is engaged, your system losing the headroom anyways. One is going to have a difficult time really truly comparing what you are saying. I don't think curves are even important. We are simply talking about a measurement sweep here. A measurement sweep that we all say is happening louder than the volume calibration screen noise. The curve is important only in that we need Dirac to do something that we can then compare. I think when I have a chance (hopefully tonight) here’s what I’m going to try to do to test this: 1. Take a set of 2.1 measurements with all speakers level matched in the volume calibration screen. 2. Take a set of 2.1 measurements with The sub running hotter so the sweeps match. 3. Take a set of 2.0 measurements with sub disabled. Then compare them all in REW and see if the overall level is different or similar. Does that seem like a valid test?
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Post by megash0n on Sept 15, 2020 18:12:33 GMT -5
I'm going to have to take a step back and evaluate how to go about doing this testing because, once Dirac is engaged, your system losing the headroom anyways. One is going to have a difficult time really truly comparing what you are saying. I don't think curves are even important. We are simply talking about a measurement sweep here. A measurement sweep that we all say is happening louder than the volume calibration screen noise. The curve is important only in that we need Dirac to do something that we can then compare. I think when I have a chance (hopefully tonight) here’s what I’m going to try to do to test this: 1. Take a set of 2.1 measurements with all speakers level matched in the volume calibration screen. 2. Take a set of 2.1 measurements with The sub running hotter so the sweeps match. 3. Take a set of 2.0 measurements with sub disabled. Then compare them all in REW and see if the overall level is different or similar. Does that seem like a valid test? It seems valid to an extent, but we need to keep in mind that, once Dirac is engaged on a system, you've lost headroom whether you are using a Dirac preset or not. I think a true test would be a factory reset. One assumes that, when Dirac is measuring and doing its volume calibration, that it bypasses all of what it does to a system. To get the true comparison with Rew, you'd ideally need a factory reset without Dirac first. I fear we are missing each other on what's going on. If we measuring after the fact, we may not find the answer because Dirac has done something to the system. Whether for good reason or not, Dirac is going to have everything level. If you turn your amp gain to %10, Dirac will level your system to that if it has headroom. If you have your subs 20db louder than the rest, Dirac will bring them down to be level with the rest. If we look at this in 3 steps, I'm trying to solve for the middle step. It is "during the process" that I'm interested in here. I'm not personally interested in any curve for this. The wife is home though and I gotta help with dinner, so I'm probably going to be out for the night.
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klinemj
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Post by klinemj on Sept 15, 2020 18:27:05 GMT -5
I'm more so frustrated in general. Not at you or ttocs. I appreciate the effort in digging in. I'm just really tired of this product to be quite honest. At this point, I cannot recall with absolute certainty what I have and have not done at some point or another. I am going to have to set everything back up and run these tests. What I do know is Dirac measures my subs lower. I hear it with my ears. I measure it will a meter. I see it on the Dirac measurement graph which I added to this thread. I assume your system is still set up in your bedroom. If so, it might be worth - since you are in contact with Dirac - laying out for them what your setup is - showing them a simple diagram of your room. Maybe that will spark some ideas for them. Since day 1 in all sorts of situations - you are having issues with levels one way or the other, esp. with the sub. I'm not even going to speculate any more on why that could be - but in this case...ask Dirac. Mark
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Post by megash0n on Sept 15, 2020 19:17:53 GMT -5
I'm more so frustrated in general. Not at you or ttocs. I appreciate the effort in digging in. I'm just really tired of this product to be quite honest. At this point, I cannot recall with absolute certainty what I have and have not done at some point or another. I am going to have to set everything back up and run these tests. What I do know is Dirac measures my subs lower. I hear it with my ears. I measure it will a meter. I see it on the Dirac measurement graph which I added to this thread. I assume your system is still set up in your bedroom. If so, it might be worth - since you are in contact with Dirac - laying out for them what your setup is - showing them a simple diagram of your room. Maybe that will spark some ideas for them. Since day 1 in all sorts of situations - you are having issues with levels one way or the other, esp. with the sub. I'm not even going to speculate any more on why that could be - but in this case...ask Dirac. Mark I did. Sent them a visio diagram yesterday. I posted their response. They're admitting there are issues with the volume calibration screen. This is what caused me to chase my tail with the subs a while back. I didn't realize the Dirac software was doing what it is doing until this past week because I "trusted the process".
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Post by bluescale on Sept 15, 2020 21:50:19 GMT -5
I fear we are missing each other on what's going on. If we measuring after the fact, we may not find the answer because Dirac has done something to the system. Whether for good reason or not, Dirac is going to have everything level. If you turn your amp gain to %10, Dirac will level your system to that if it has headroom. If you have your subs 20db louder than the rest, Dirac will bring them down to be level with the rest. If we look at this in 3 steps, I'm trying to solve for the middle step. It is "during the process" that I'm interested in here. I'm not personally interested in any curve for this. The wife is home though and I gotta help with dinner, so I'm probably going to be out for the night. I’m definitely confused about what you’re experiencing, which is why I said earlier that I want to understand your experience. I know that Dirac will impact headroom - that’s just a fact with any room calibration. And I’m not interested in unmaking Dirac’s sausage or comparing curves. All I want to know is if having the sub at different volumes during the measurement process (Or eliminating it all together) results in different amounts of attenuation. Isn’t that what you see? If the sub is played at a higher level during measurements you get a different overall output level (i.e, you can watch at -15 vs -25).
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Post by megash0n on Sept 15, 2020 22:08:18 GMT -5
I fear we are missing each other on what's going on. If we measuring after the fact, we may not find the answer because Dirac has done something to the system. Whether for good reason or not, Dirac is going to have everything level. If you turn your amp gain to %10, Dirac will level your system to that if it has headroom. If you have your subs 20db louder than the rest, Dirac will bring them down to be level with the rest. If we look at this in 3 steps, I'm trying to solve for the middle step. It is "during the process" that I'm interested in here. I'm not personally interested in any curve for this. The wife is home though and I gotta help with dinner, so I'm probably going to be out for the night. I’m definitely confused about what you’re experiencing, which is why I said earlier that I want to understand your experience. I know that Dirac will impact headroom - that’s just a fact with any room calibration. And I’m not interested in unmaking Dirac’s sausage or comparing curves. All I want to know is if having the sub at different volumes during the measurement process (Or eliminating it all together) results in different amounts of attenuation. Isn’t that what you see? If the sub is played at a higher level during measurements you get a different overall output level (i.e, you can watch at -15 vs -25). Yes, I do get a different outcome depending on whether I let Dirac do it's thing, or if I, knowing that Dirac's measurement will play my sub lower than everything else, raise that to the level everything else is measuring at. For the sake of making sure you see the issue, if you adjusted your gain so that the sub measures 25 db less than your mains, during Dirac measurement, then tell me if you do not have a difference in volume knob when trying to reach the same spl. Again, this really wasn't my point or question. My question was why does their volume calibration screen show all speakers being level, but then play non-sub channels higher when measuring. According to them, they have some issues here. Their software is certainly broken in this area. They admit it, and we have multiple people explaining that the calibration screen doesn't align with the measurements.
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Post by bluescale on Sept 15, 2020 22:31:30 GMT -5
Yes, I do get a different outcome depending on whether I let Dirac do it's thing, or if I, knowing that Dirac's measurement will play my sub lower than everything else, raise that to the level everything else is measuring at. For the sake of making sure you see the issue, if you adjusted your gain so that the sub measures 25 db less than your mains, during Dirac measurement, then tell me if you do not have a difference in volume knob when trying to reach the same spl. Again, this really wasn't my point or question. My question was why does their volume calibration screen show all speakers being level, but then play non-sub channels higher when measuring. According to them, they have some issues here. Their software is certainly broken in this area. They admit it, and we have multiple people explaining that the calibration screen doesn't align with the measurements. Two things: 1) if your main question is *why* this happens, there’s little reason for me to do this test. I can’t speak to why it’s playing at a different level, just whether or not it makes a difference. 2) Why lower the sub 25dB? That’s not a realistic representation of the issue. If I lower the sub level 25dB I doubt it’ll be loud enough for the measurements to complete.
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