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Post by taxman2 on Jan 9, 2015 6:08:04 GMT -5
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Post by barrak on Jan 9, 2015 8:54:13 GMT -5
Curious about your room dimensions and any treatments it has. If it has similar dimensions then some bass traps are in order. You could do them yourself if you're handy enough. As it is, Dirac would do wonders for you, though the volume level would be low due to the excessive measured peaks that need to be attenuated. As a quick experiment, drag your sofa cushions and mattresses to the room corners and re measure. For good measure, don't explain what you're doing to the spouse. |
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Post by ansat on Jan 9, 2015 9:12:03 GMT -5
Do you have a spl meter? Tony |
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Post by taxman2 on Jan 9, 2015 10:11:55 GMT -5
My room is square 13 x 13, carpeted, bass traps in 4 corners and sound panels on the every wall. I do nor have spl meter, I am using an iPhone application to measure the levels. Maybe the problem is in the speakers? I've run the trial version of dirac and it gave me better measurements. oi57.tinypic.com/29gjybr.jpg Maybe the trial version is not that accurate. |
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Post by ansat on Jan 9, 2015 10:16:12 GMT -5
My room is square 13 x 13, carpeted, bass traps in 4 corners and sound panels on the every wall. I do nor have spl meter, I am using an iPhone application to measure the levels. Maybe the problem is in the speakers? I've run the trial version of dirac and it gave me better measurements. oi57.tinypic.com/29gjybr.jpg Maybe the trial version is not that accurate. Your iPhone meter will work. Go into speaker preset 2 and use the 40hz test tone and the 100 hz test tone and grab a spl measurement of both. I want to verify that the problem is not the mic. As of right now, it has to be either the mic or the room causing the issues. Tony |
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Post by taxman2 on Jan 9, 2015 10:28:45 GMT -5
I don't see where to select 40 Hz and 100 Hz for the test tone. Maybe should use rew to generate such frequencies.
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Post by barrak on Jan 9, 2015 10:46:11 GMT -5
My room is square 13 x 13, carpeted, bass traps in 4 corners and sound panels on the every wall. I do nor have spl meter, I am using an iPhone application to measure the levels. Maybe the problem is in the speakers? I've run the trial version of dirac and it gave me better measurements. oi57.tinypic.com/29gjybr.jpg Maybe the trial version is not that accurate. Pretty sure it's your room modes. You have a square room and the 13 ft double dimension translates into double dominant modes at 43.5 Hz. Please describe your bass traps: dimensions, material, locations. Ignore wall panels, they are for higher frequencies. |
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tubby
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Post by tubby on Jan 9, 2015 10:50:10 GMT -5
What mic did you use with the trial version? can you test with REW to compare before and after? BTW the trial version looks very similar to the XMC version to me. The peak is still there just a bit less volume, which could easily be due to slightly different mic placement.
I may have missed it, did you load the filters and see how it sounds?
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Post by taxman2 on Jan 9, 2015 11:55:52 GMT -5
I like the way it sounds but the lack of bass is very frustrating. The traps are 3 ft high in the four corners of the room. They are made of dense material some sort of sponge. oi57.tinypic.com/1pxkxj.jpg For both versions I used emo mic. Will continue testing more options tomorrow. |
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Post by tubby on Jan 9, 2015 12:07:35 GMT -5
Lack of bass is not surprising considering the big peak in the before graphs. If you were used to that and it has now been knocked down you would certainly notice. While it may be more accurate now (assuming the theoretical after is accurate to the real response) it does not mean you prefer it that way, and nothing wrong with that. You can always use the tone and sub trims to give you that increase back.
The other consideration is that the mic is bad and what Dirac is seeing is not correct, which is what Tony was getting at. The test tones are in the EQ section I believe, go into one of the filters and you can adjust the frequency and turn it on and off.
After verifying the mic you could also use it with REW to validate the actual corrected response at MLP. Use Tony's calibration file and it should be accurate enough to at least to see what is going on in the lower regions.
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Post by taxman2 on Jan 9, 2015 12:11:53 GMT -5
Thank you! I will do that first thing tomorrow morning and share the experience.
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Post by ansat on Jan 9, 2015 12:42:16 GMT -5
Lack of bass is not surprising considering the big peak in the before graphs. If you were used to that and it has now been knocked down you would certainly notice. While it may be more accurate now (assuming the theoretical after is accurate to the real response) it does not mean you prefer it that way, and nothing wrong with that. You can always use the tone and sub trims to give you that increase back. The other consideration is that the mic is bad and what Dirac is seeing is not correct, which is what Tony was getting at. The test tones are in the EQ section I believe, go into one of the filters and you can adjust the frequency and turn it on and off. After verifying the mic you could also use it with REW to validate the actual corrected response at MLP. Use Tony's calibration file and it should be accurate enough to at least to see what is going on in the lower regions. My EMM calibration file is in my signature. Tony |
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Post by taxman2 on Jan 11, 2015 16:30:10 GMT -5
I did the test tones on 40 and 100 Hz - SPL meter shows 84 db on 65db test tone. Actually I like what dirac did and I am very satisfied with that. Just increased the subwoofers levels by 6 db and the picture is perfect for me. Thank you all for your support. By the way I tried with umic mic on the trial version and got a slightly better response. oi57.tinypic.com/2wovktt.jpg |
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Post by JNieves on Jan 11, 2015 22:28:27 GMT -5
I did the test tones on 40 and 100 Hz - SPL meter shows 84 db on 65db test tone. Actually I like what dirac did and I am very satisfied with that. Just increased the subwoofers levels by 6 db and the picture is perfect for me. Thank you all for your support. By the way I tried with umic mic on the trial version and got a slightly better response. oi57.tinypic.com/2wovktt.jpgI also raised subwoofers by 6dB. I am planning to get an Anti-Mode 2.0 Dual Core to equalize/correct my two subs and I'm interested in your thoughts, especially Tony's. From all I've read I am thinking I should let the Anti-Mode do its thing and then do the Dirac run. Any thoughts otherwise? |
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Post by ansat on Jan 11, 2015 22:40:46 GMT -5
I did the test tones on 40 and 100 Hz - SPL meter shows 84 db on 65db test tone. Actually I like what dirac did and I am very satisfied with that. Just increased the subwoofers levels by 6 db and the picture is perfect for me. Thank you all for your support. By the way I tried with umic mic on the trial version and got a slightly better response. oi57.tinypic.com/2wovktt.jpgI also raised subwoofers by 6dB. I am planning to get an Anti-Mode 2.0 Dual Core to equalize/correct my two subs and I'm interested in your thoughts, especially Tony's. From all I've read I am thinking I should let the Anti-Mode do its thing and then do the Dirac run. Any thoughts otherwise? You don't need the anti-mode. You should have everything you need in the ultras. Follow emotivalounge.proboards.com/thread/40600/multi-sub-dirac-minidsp-beginners to get your self familiar with taking measurements with your sub, and just phase align the two subs. For your situation, you just need to make sure that the when both subs are played at the same time, that the response is higher from 10 - 150hz then if a single sub was played. Once you done that, then use a splitter out of the Sub L channel and configure your subs as mono. Let Dirac do its thing. Drink beer and enjoy! If your intimidated by REW. I am working up another tutorial on a different free program out there that will do the same thing and be a little less intimidating. Tony |
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Post by taxman2 on Jan 13, 2015 12:33:56 GMT -5
I've run dirac with different settings and I've got exactly the same response. This is not normal. I uninstalled dirac from the computer and reset factory settings on the XMC-1, than reinstall it set dirac to small speakers with cut off at 60 Hz and dual mono subs and still exactly the same response (I was hoping to reduce the hump at 43 Hz on the main speakers) but nothing has changed. What does this means?
No matter what I do the response is exactly the same. Any idea?
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Post by foggy1956 on Jan 13, 2015 12:38:55 GMT -5
I've run dirac with different settings and I've got exactly the same response. This is not normal. I uninstalled dirac from the computer and reset factory settings on the XMC-1, than reinstall it set dirac to small speakers with cut off at 60 Hz and dual mono subs and still exactly the same response (I was hoping to reduce the hump at 43 Hz on the main speakers) but nothing has changed. What does this means? No matter what I do the response is exactly the same. Any idea? If you set your crossover at 60hz I don't think your mains are producing the hump at 43 hz |
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Post by ansat on Jan 13, 2015 13:07:00 GMT -5
I did the test tones on 40 and 100 Hz - SPL meter shows 84 db on 65db test tone. Actually I like what dirac did and I am very satisfied with that. Just increased the subwoofers levels by 6 db and the picture is perfect for me. Thank you all for your support. By the way I tried with umic mic on the trial version and got a slightly better response. oi57.tinypic.com/2wovktt.jpgFor both 40 and 100? |
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tubby
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Post by tubby on Jan 13, 2015 13:28:03 GMT -5
I've run dirac with different settings and I've got exactly the same response. This is not normal. I uninstalled dirac from the computer and reset factory settings on the XMC-1, than reinstall it set dirac to small speakers with cut off at 60 Hz and dual mono subs and still exactly the same response (I was hoping to reduce the hump at 43 Hz on the main speakers) but nothing has changed. What does this means? No matter what I do the response is exactly the same. Any idea? The crossover setting will not affect the Dirac readings. It measures the channels full range regardless. Crossover is only applied during use. If you are measuring in the same place then the measurement should always be the same. You would need to experiment with placement of speakers and sub to improve the "before" readings. Unless there is a reason to think the measurement is wrong (Tony is trying to figure that out) and the correction sounds/measures good (have you measured with the umik in REW?) then I don't think there is anything to worry about (as far as Dirac functioning properly). |
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Post by taxman2 on Jan 14, 2015 2:53:26 GMT -5
I can't use rew on my mac with emo mic. As you know I use VMware and windows 7 for dirac LE. I even installed rew under windows but still can't figure out how to use the emo mic. I use the cal file from Tony. Something is not right. With umic it works fine.
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