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Old 9th April 2015, 06:58 AM   #1
alexm84 is offline alexm84  Australia
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Default Measurement Mic question

I'm looking into getting a cheap measurement mic to setup a flat response for my car stereo.

I was looking into the dayton IMM-6 one that plugs into the phone, but saw the EMM-6 isn't much more. I figure this may be a better mic setup and will be easier to use with a stand.

I did see it has an XLR connection though. Can someone please educate me on how people plug these in to test? Can you plug them into your laptop using an adapter? or am i better off just getting the IMM-6? is there much difference in the mic itself?

Thanks in advance
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Old 9th April 2015, 07:48 PM   #2
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There is no cheap measurement mic.

There is an amount of qualifying mic with a price tag of several hundred dollars, and specialized software which is sold for several hundred dollars too.
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Old 9th April 2015, 08:41 PM   #3
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The miniDSP PMIK-1 could be what you are looking for Comes with individual calibration.

I am using the UMIK-1 and did some comparisons with professional B&K Measurement Mics and its really good for the price.

kind regards, Daniel
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Old 21st April 2015, 01:44 PM   #4
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try this Isemcon EMX 7150



emx-7150

http://www.fohonline.com/newgear/774...ement-mic.html

http://www.isemcon.com/datasheets/iS...MX-7150-US.pdf
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Old 21st April 2015, 02:22 PM   #5
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You will get wildly different response if you move a few centimeters apart in a car.
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Old 24th May 2015, 05:41 PM   #6
LADave is offline LADave  United States
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Icsaszar is right. This is also true at home, especially with 2+ channels where you have abundant cancellation effects, so it's better to test one speaker at a time if you can isolate via input or balance controls. You also may find easier going with pink noise than pure tones.

I'd guess that given varioiu other uncertainties besides mic response, the IMM-6 with its calibration file would be hard to improve on, at least in terms of end results. Maybe you could borrow a better mic just to see, and let us know?
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Old 29th May 2015, 05:08 PM   #7
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Quote:
Originally Posted by curryman View Post
The miniDSP PMIK-1 could be what you are looking for Comes with individual calibration.

I am using the UMIK-1 and did some comparisons with professional B&K Measurement Mics and its really good for the price.

kind regards, Daniel
+1. This mic and the similar Dayton mic are alleged to have a common heritage. There are also calibrated versions.

The most likely variatons in these mics relate to sensitivity. Careful workers have mic calibrators that operate at just one frequency, but that test shows the sensitivity drift. By drift I mean spontaneous changes of multiple dBs, mostly negative.

Last edited by arnyk; 29th May 2015 at 05:11 PM.
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