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Post by newgolf on Oct 11, 2021 14:32:16 GMT -5
Hello friends, today when measuring my system after passing dirac. I find that from 10khz it makes me a kind of hp completely dropping the treble. It is a configuration of rew or emotional. say I correct up to 20khz thanks  |
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Post by ttocs on Oct 11, 2021 14:44:08 GMT -5
More info from you might help.
What kind of amp and speakers?
Is the speaker being measured setup as Large or Small in the RMC-1?
If Small, is the subwoofer turned off for the Green measurement, and turned on for the Red measurement?
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Post by newgolf on Oct 11, 2021 15:48:51 GMT -5
Thanks for answering, the amplifier is a b&k av5000 the speakers are about jamo d500. I measured the box and then the box plus sub. I have measured both with dirac and without it and it gives me the same result, my speakers do not fall so much in treble, for a hp filter at 10khz or a micro error
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Post by jbrunwa on Oct 11, 2021 16:17:34 GMT -5
Are the speakers angled so they face the main listening position? The high frequencies can fall off when measured off axis.
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Post by ttocs on Oct 11, 2021 16:24:17 GMT -5
Thanks for answering, the amplifier is a b&k av5000 the speakers are about jamo d500. I measured the box and then the box plus sub. I have measured both with dirac and without it and it gives me the same result, my speakers do not fall so much in treble, for a hp filter at 10khz or a micro error hmmmm, Then try this, change the Audio Mode to Direct, then run REW and see what happens. Direct "eliminates most processing, but still retains bass management", so Dirac will not be active. This will help to find out if it's something in the Dirac filter or something else. |
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Post by newgolf on Oct 11, 2021 16:42:38 GMT -5
Thank you for the suggestion. Tomorrow I will try to measure with direct, I have measured with the emotional mic and the file circulating in this forum in case it helps
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Post by newgolf on Oct 11, 2021 16:48:41 GMT -5
Thanks for answering, the amplifier is a b&k av5000 the speakers are about jamo d500. I measured the box and then the box plus sub. I have measured both with dirac and without it and it gives me the same result, my speakers do not fall so much in treble, for a hp filter at 10khz or a micro error hmmmm, Then try this, change the Audio Mode to Direct, then run REW and see what happens. Direct "eliminates most processing, but still retains bass management", so Dirac will not be active. This will help to find out if it's something in the Dirac filter or something else. The boxes are 20 cm from the center of the room, in fact in the dirac graphs it shows me a fall from 3 khz but it reaches -4 to 20khz, I have a fall but not as abrupt as rew shows me. |
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Post by ttocs on Oct 11, 2021 16:56:10 GMT -5
The Emotiva EMM-1 mic is fine. It's at least as accurate as the spec for most speakers which is +-3dB. As jbrunwa asked, were the measurements done on-axis or off-axis to the speakers? edit: One other thing. Are you measuring just one speaker at a time? or both together? |
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Post by newgolf on Oct 11, 2021 17:54:33 GMT -5
Then he ruled out a problem with the microphone. Only one speaker was measured
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Post by bolle on Oct 12, 2021 4:32:05 GMT -5
The Emotiva EMM-1 mic is fine. It's at least as accurate as the spec for most speakers which is +-3dB. As jbrunwa asked, were the measurements done on-axis or off-axis to the speakers? edit: One other thing. Are you measuring just one speaker at a time? or both together? The statement regarding the EMM-1 is actually not correct. I did get mine calibrated, see the comparison of the calibration file provided by Emotiva and the correct one in my case:  Note especially upwards from 10kHz the original file does correct almost -15dB when nearing 20kHz. Summed up the EMM-1 is more like +-5dB, which is too coarse imo. It is worth to get calibrated. In your case however I would think that you are measuring off axis as already mentioned by the other posters. On how many positions did you measure and calibrate with DIRAC? Did you measure with REW at the exact same place and height as you did the first measurement with DIRAC? |
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Post by newgolf on Oct 12, 2021 7:01:32 GMT -5
Thank you for the answer, I measured in a single point since it is where it gives me the best answer, if I measure at more points it almost does not correct the frequency response of my room. So they say that the calibration file I use is not the right one? I think it's the 90-degree
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Post by bolle on Oct 12, 2021 9:00:26 GMT -5
It is a generic calibration file, not a specific one for YOUR microphone.
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Post by ttocs on Oct 12, 2021 9:34:18 GMT -5
This is using the EMM-1 for a Dirac filter, and for the REW measurement, which is what the OP is doing.  |
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Post by ttocs on Oct 12, 2021 9:47:52 GMT -5
Thank you for the answer, I measured in a single point since it is where it gives me the best answer, if I measure at more points it almost does not correct the frequency response of my room. So they say that the calibration file I use is not the right one? I think it's the 90-degree On the first page of the Dirac thread is where you can find the EMM-1 Calibration file. The Official Dirac Live Thread: Start w/1,2,3 🙋♂️It's in the second post listed as "—> Emotiva Microphone Calibration File". |
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Post by newgolf on Oct 12, 2021 10:48:55 GMT -5
Thank you guys. I will calibrate with the file that provides emotional and I will measure with it, today I will not be able to measure Siro again why I did not get audio for the previous one. I'm going to reset and try again
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Post by newgolf on Oct 12, 2021 11:05:05 GMT -5
Thank you guys. I will calibrate with the file that provides emotional and I will measure with it, today I will not be able to measure Siro again why I did not get audio for the previous one. I'm going to reset and try again Please provide me with the link to that page, I am not able to find it. Thank you |
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Post by ttocs on Oct 12, 2021 11:11:46 GMT -5
The Emotiva EMM-1 mic is fine. It's at least as accurate as the spec for most speakers which is +-3dB. As jbrunwa asked, were the measurements done on-axis or off-axis to the speakers? edit: One other thing. Are you measuring just one speaker at a time? or both together? The statement regarding the EMM-1 is actually not correct. I did get mine calibrated, see the comparison of the calibration file provided by Emotiva and the correct one in my case: Note especially upwards from 10kHz the original file does correct almost -15dB when nearing 20kHz. Summed up the EMM-1 is more like +-5dB, which is too coarse imo. It is worth to get calibrated. bolle you are correct about +-5dB. Most of the extra couple dB is in the upper range of frequencies. I have three mics, 2 UMIK-1 and the EMM-1, so I used the third one to compare. Both UMIKs are interchangeable, little here, little there sort of thing, but really close. Here's where it gets to be a viewers choice kinda thing. I did a fresh Dirac run for the EMM-1 and a Dirac run for a UMIK-1. The UMIK in this case is setup with the default sensitivity of -18dB. I use the other UMIK with a -12dB sensitivity for measuring higher SPL, but also just for general stuff, like in this case where I'm using it as the "impartial observer" because it wasn't used for a Dirac filter. When using the EMM-1 with Dirac, Dirac will correct what it hears and when using the EMM-1 with REW it should look good. Same with using a UMIK-1, the UMIK-1 will like what it hears from itself. So I used the UMIK-1(-12dB) mic to measure the Dirac filters created with the other two mics.  Remember, this is a "relative comparison". Nothing here is absolute. It's taking 3 mics from a bin and using one to make a comparison of the other two. Which one is correct? Well, the EMM-1 uses a group calibration, is waaaaaay better than the disc mics we used to get with our processors from the olden times, but is simply not the best mic out there, however - it's extremely useful and can be used with great results. Use it with Dirac, listen to the results, tune as needed. It's easier to use the UMIK-1, and this is due to each getting a unique cal file. Let the fun begin. |
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Post by ttocs on Oct 12, 2021 11:14:05 GMT -5
Thank you guys. I will calibrate with the file that provides emotional and I will measure with it, today I will not be able to measure Siro again why I did not get audio for the previous one. I'm going to reset and try again Please provide me with the link to that page, I am not able to find it. Thank you The EMM-1 Cal File. www.dropbox.com/s/qpoty0ufzm4oxp0/EmotivaMicCalOA.txt?dl=0 |
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Post by newgolf on Oct 12, 2021 13:25:48 GMT -5
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geebo
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Post by geebo on Oct 12, 2021 13:57:53 GMT -5
The statement regarding the EMM-1 is actually not correct. I did get mine calibrated, see the comparison of the calibration file provided by Emotiva and the correct one in my case: Note especially upwards from 10kHz the original file does correct almost -15dB when nearing 20kHz. Summed up the EMM-1 is more like +-5dB, which is too coarse imo. It is worth to get calibrated. bolle you are correct about +-5dB. Most of the extra couple dB is in the upper range of frequencies. I have three mics, 2 UMIK-1 and the EMM-1, so I used the third one to compare. Both UMIKs are interchangeable, little here, little there sort of thing, but really close. Here's where it gets to be a viewers choice kinda thing. I did a fresh Dirac run for the EMM-1 and a Dirac run for a UMIK-1. The UMIK in this case is setup with the default sensitivity of -18dB. I use the other UMIK with a -12dB sensitivity for measuring higher SPL, but also just for general stuff, like in this case where I'm using it as the "impartial observer" because it wasn't used for a Dirac filter. When using the EMM-1 with Dirac, Dirac will correct what it hears and when using the EMM-1 with REW it should look good. Same with using a UMIK-1, the UMIK-1 will like what it hears from itself. So I used the UMIK-1(-12dB) mic to measure the Dirac filters created with the other two mics. View AttachmentRemember, this is a "relative comparison". Nothing here is absolute. It's taking 3 mics from a bin and using one to make a comparison of the other two. Which one is correct? Well, the EMM-1 uses a group calibration, is waaaaaay better than the disc mics we used to get with our processors from the olden times, but is simply not the best mic out there, however - it's extremely useful and can be used with great results. Use it with Dirac, listen to the results, tune as needed. It's easier to use the UMIK-1, and this is due to each getting a unique cal file. Let the fun begin. Just curious, were any of your mics individually calibrated like you can get from Cross Spectrum Labs? |
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