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Post by ansat on Jan 5, 2015 12:12:23 GMT -5
Another weird quark with the emotiva mic that I found last night. Rew measurements are not accurate if you run a 4 sweep average. Not sure what Is going on there, But I discovered its existence while making the calibration file.
Tony
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tubby
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Route 2 in Weekapaug!!!
Posts: 408
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Post by tubby on Jan 5, 2015 13:32:03 GMT -5
Tony I noticed the cal file for the EMM in the Dirac folder only corrects down to 31hz. From your measurements have you noticed if this is causing any issues to corrections below 31hz?
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Post by ansat on Jan 5, 2015 13:37:34 GMT -5
Tony I noticed the cal file for the EMM in the Dirac folder only corrects down to 31hz. From your measurements have you noticed if this is causing any issues to corrections below 31hz? Its not bad- I have the EMM calibration that I made in my signature that you can compare with. Tony |
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Post by socketman on Jan 5, 2015 15:37:06 GMT -5
Good catch, guess I am back to sending my mic to Cross Spectrum. Thanks You're sending the Emotiva mic to CS? Yes I will be once its in my grubby little paws. 75 bux with return shipping give me 3 axis calibration. I gotta know how herbs files compare to what Dirac is using. I don't believe using a measuring tape in place of micrometer is of any value. In my world close enough is not close enough. |
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Post by foggy1956 on Jan 5, 2015 16:06:10 GMT -5
You're sending the Emotiva mic to CS? Yes I will be once its in my grubby little paws. 75 bux with return shipping give me 3 axis calibration. I gotta know how herbs files compare to what Dirac is using. I don't believe using a measuring tape in place of micrometer is of any value. In my world close enough is not close enough. Better send the cable also |
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Post by PGT on Jan 5, 2015 17:07:18 GMT -5
My mic seems to have a mind of its own....levels fluctuating from low to maxed out even when its dead quiet or XLR is unplugged. After closing Dirac, I keep getting sweep tones through my speakers. A hard reboot of the XMC was required. I tried to take some videos.....dead quiet, HVAC shut off even. One video shows the mic unplugged which made no difference on the fluctuating levels in the software. Bad mic? #1 - www.youtube.com/watch?v=gKvHG7b7_NM#2 (mic unplugged) - www.youtube.com/watch?v=MN2Fowe3Sxg#3 - www.youtube.com/watch?v=yrdHH21L_7U- Sometimes the terseness of my reply can't be blamed on my phone.  |
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Post by ansat on Jan 5, 2015 17:12:15 GMT -5
My mic seems to have a mind of its own....levels fluctuating from low to maxed out even when its dead quiet or XLR is unplugged. After closing Dirac, I keep getting sweep tones through my speakers. A hard reboot of the XMC was required. I tried to take some videos.....dead quiet, HVAC shut off even. One video shows the mic unplugged which made no difference on the fluctuating levels in the software. Bad mic? #1 - www.youtube.com/watch?v=gKvHG7b7_NM#2 (mic unplugged) - www.youtube.com/watch?v=MN2Fowe3Sxg#3 - www.youtube.com/watch?v=yrdHH21L_7U- Sometimes the terseness of my reply can't be blamed on my phone. The videos are set to private. Did you turn off AGC in the microphone properties? |
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Post by PGT on Jan 5, 2015 17:14:52 GMT -5
switched them to unlisted...see if that works. AGC? auto-gain-compensation? - Sometimes the terseness of my reply can't be blamed on my phone. |
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Post by geebo on Jan 5, 2015 17:17:09 GMT -5
switched them to unlisted...see if that works. AGC? auto-gain-compensation? - Sometimes the terseness of my reply can't be blamed on my phone. Yes, AGC. Make sure it's not checked in Windows' properties for the Mic. I think it's in the Custom tab. Not sure if it will cure anything for you but that needs to be unchecked nonetheless. |
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Post by PGT on Jan 5, 2015 17:18:57 GMT -5
thanks....will check it tonight. I need to re-run stuff as I've got a cold solder joint on my right surround midbass and it was clear I was only getting HF in the measurement out of that speaker (its always something, right? never easy) - Sometimes the terseness of my reply can't be blamed on my phone. |
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Post by socketman on Jan 5, 2015 20:17:05 GMT -5
Yes I will be once its in my grubby little paws. 75 bux with return shipping give me 3 axis calibration. I gotta know how herbs files compare to what Dirac is using. I don't believe using a measuring tape in place of micrometer is of any value. In my world close enough is not close enough. Better send the cable also Yuup I will be sending the cable as well, though I am sure herb would have no trouble either way. |
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Post by deewan on Jan 9, 2015 11:51:58 GMT -5
I should have my third Dirac USB cable delivered today. Hoping and praying this cable works and I can finally run Dirac.
*fingers crossed*
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Post by ansat on Jan 9, 2015 12:46:21 GMT -5
I should have my third Dirac USB cable delivered today. Hoping and praying this cable works and I can finally run Dirac. *fingers crossed* I am rooting for ya. Give us an update as soon as you see movement! TOny |
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Post by audiophill on Jan 9, 2015 13:33:37 GMT -5
I hope the cable works out for you! I am enjoying the results from Dirac, it was worth the wait.
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Post by onesufferinmind on Jan 9, 2015 15:47:31 GMT -5
From Lonnie : I am very curious to get to the bottom of what is going on here with the Mics. During production the mics are tested three different times before they are packed up and given the aluminum body they are pretty well protected from damage unless a really loud (as in excess of 120db) sound hits them which can damage the diaphragm. That is pretty unlikely though unless you are yelling into the mic. No offense intended here, but it is a really sensitive mic and yelling into it will damage it. Please don't do that. Lonnie I realize I'm joining late in the game, so I hope you'll forgive me if this has already been answered. Wouldn't dropping the mic on a hard surface, or similarly jarring it, cause the same damage? |
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Post by onesufferinmind on Jan 9, 2015 16:00:04 GMT -5
I was worried when I started reading the OP. Now I'm worried and lost. I'm no more special special than the next guy, and perhaps even less so. What I'm trying to say is that my time isn't worth more than any of yours (especially those who have done all this hard work), but can someone please help? Is there a connect-the-dots procedure to finding out if your mic is good/bad? TIA  |
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Post by ansat on Jan 9, 2015 16:20:11 GMT -5
I was worried when I started reading the OP. Now I'm worried and lost. I'm no more special special than the next guy, and perhaps even less so. What I'm trying to say is that my time isn't worth more than any of yours (especially those who have done all this hard work), but can someone please help? Is there a connect-the-dots procedure to finding out if your mic is good/bad? TIA , I am still working this out, Right now the best method us using a full range speaker and taking a measurement with REW with the microphone 1 meter away to see the frequency response. The measurement should be very similar to what the specifications of the speaker are. This would be the most accurate way to test, but also have the highest learning curve. The next method easier, but less accurate, is to use a SPL meter and using test tones to spot check what dirac is seeing. The test tones are built into the XMC and even a phone would get it close. I still have a few more tutorials to work out and will have something soon. (I hope) Tony |
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Post by ansat on Jan 9, 2015 16:21:20 GMT -5
I realize I'm joining late in the game, so I hope you'll forgive me if this has already been answered. Wouldn't dropping the mic on a hard surface, or similarly jarring it, cause the same damage? This is not out the realm of possibilities. Hopefully lonnie can give some more input once he has his answers. Tony |
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Post by deewan on Jan 9, 2015 17:06:50 GMT -5
The mic has to be somewhat heavy duty. It's being shipped all around the world in boxes and or bubble-lined envelopes. Heading home from work now. I'll give the new cable a go and hope it works with the mic.
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Post by deewan on Jan 9, 2015 17:57:04 GMT -5
Whah whah whah.... I feel like I am the punchline of a bad joke. Here is my new XMC-1 Dirac cable. I don't think this is going to help me....  Guess I'll have another weekend without Dirac working. First world problems right here!!!  |
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