Measurement Mic Shootout (EMM-6, WM-61A, RS 33-2055, Audyssey) - Page 13 - AVS Forum | Home Theater Discussions And Reviews
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post #361 of 390 Old 04-09-2014, 05:12 PM - Thread Starter
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Quote:
Originally Posted by 235 View Post

Thanks, I realize the generic files available here won't be as accurate as having my mic calibrated. However I am not looking for absolute accuracy, rather feedback for relative changes after tweeking. The hometheatershack site also seems to suggest that the generic calibration files would be good enough to use in a home theater setting:

"...so it is our opinion that it will be fine to use in a home theater in most cases"


It's too bad that page does not list the .cal file for the latest RS model mad.gif

If you read the post here you'd see that virtually every RS calibration file i've seen is inaccurate.
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post #362 of 390 Old 04-10-2014, 04:15 AM
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Speaking of the Radio Shack SPL meters, which one is the most ideal model to get for setting and measuring SPL levels for home theater type usage? Which model? Digital or analog?
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post #363 of 390 Old 04-10-2014, 04:20 AM - Thread Starter
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Quote:
Originally Posted by Martycool007 View Post

Speaking of the Radio Shack SPL meters, which one is the most ideal model to get for setting and measuring SPL levels for home theater type usage? Which model? Digital or analog?

Neither are in production anymore. This is the only one available from RS. I've yet to see it tested.

http://www.radioshack.com/product/index.jsp?productId=12680845
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post #364 of 390 Old 04-10-2014, 08:56 AM
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Quote:
Originally Posted by notnyt View Post

If you read the post here you'd see that virtually every RS calibration file i've seen is inaccurate.
Sorry, which post are you referring to?
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post #365 of 390 Old 04-10-2014, 02:16 PM - Thread Starter
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Originally Posted by 235 View Post

Sorry, which post are you referring to?

This thread. There are also large variances within the RS mics as some use different capsules.
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post #366 of 390 Old 04-10-2014, 02:25 PM
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Ok thanks. So in the absence of getting a calibration you are saying I am better off using REW without any calibration file for my particular model?
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post #367 of 390 Old 04-10-2014, 02:42 PM
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With C-weighting.

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post #368 of 390 Old 04-10-2014, 03:20 PM - Thread Starter
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Originally Posted by MKtheater View Post

With C-weighting.

Well, that worked for the newer batches I tested of the 33-2055, but not the latest one they're selling, which is at this point untested. If its using the same internals, sure, but who can say.
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post #369 of 390 Old 04-10-2014, 04:57 PM
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Yeah I am ways thinking of my digital RS meter which you tested.

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post #370 of 390 Old 04-16-2014, 09:23 AM
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Notnyt,
Is there a chance you can compare the Umik with Cal files and just C-weighting with it? I am curious how close they would be.

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post #371 of 390 Old 04-16-2014, 01:25 PM - Thread Starter
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Compare the umik
Quote:
Originally Posted by MKtheater View Post

Notnyt,
Is there a chance you can compare the Umik with Cal files and just C-weighting with it? I am curious how close they would be.

Compare the umik to what?
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post #372 of 390 Old 04-16-2014, 01:34 PM
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Can cross-spectrum calibrate any mic? I have a radioshack 33-4050 spl meter and wondering if that could be calibrated? If so, is it even worth to calibrate that spl meter compared to something like the UMIK-1 or Dayton UMM-6?


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post #373 of 390 Old 04-16-2014, 01:39 PM
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Quote:
Originally Posted by notnyt View Post

Compare the umik
Compare the umik to what?

Just comparing a measurement from the Umik with the cal files and then with just C-weighting. My Behringer mic cal files are real close to just adding C-weight to it. I like the mic but I am looking for something to run with spec lab and cal files are no good as of yet. Ironmike was researching it and if I can load cal files then I need nothing.

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post #374 of 390 Old 04-16-2014, 01:40 PM - Thread Starter
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I posted a graph of the calibration on the umik earlier. It's nowhere close to c weighting.
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post #375 of 390 Old 04-16-2014, 02:02 PM
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Cool but no good for spec lab or I would have kept mine.

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post #376 of 390 Old 02-08-2018, 09:01 AM
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There's a lot to digest in this thread, so I'll just ask... will I be able to use an Audysey XT or XT32 mic with my laptop's sound card and HDMI out to my AVR? I'm mostly just looking to do a few measurements post-XT32 measurements to see if it's doing enough for the sub, or if I need to add either a MiniDSP or iNUKE DSP on down the road. MultEQ Editor gives a "before" and "estimated" curve, but not a measured "after" curve.
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post #377 of 390 Old 02-08-2018, 10:57 AM - Thread Starter
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Quote:
Originally Posted by Stephen Hopkins View Post
There's a lot to digest in this thread, so I'll just ask... will I be able to use an Audysey XT or XT32 mic with my laptop's sound card and HDMI out to my AVR? I'm mostly just looking to do a few measurements post-XT32 measurements to see if it's doing enough for the sub, or if I need to add either a MiniDSP or iNUKE DSP on down the road. MultEQ Editor gives a "before" and "estimated" curve, but not a measured "after" curve.
Yes, should be fine. Select z-weighted for the mic if measuring in REW.
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post #378 of 390 Old 02-08-2018, 12:48 PM
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Thanks. Are there any FAQs out there on how to do the soundcard calibration portion?

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post #379 of 390 Old 02-08-2018, 01:30 PM - Thread Starter
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Quote:
Originally Posted by Stephen Hopkins View Post
Thanks. Are there any FAQs out there on how to do the soundcard calibration portion?
Skip it. Likely won't play a factor, though if you really want, you'd have to do a loopback calibraiton with your hdmi out to your avr/pre, then a pre out back into your laptop input... which may behave differently with a mic vs a line level input anyway...
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post #380 of 390 Old 02-08-2018, 02:13 PM
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Thanks for the heads up. My SR6011 will be delivered tomorrow and the 3.5mm mic splitter (laptop only has a single 4-prong combo-port) will be here Saturday. I wish I'd got on this a bit earlier... I just missed a used iNuke 1000 DSP on eBay for $116, I just don't know yet if I need it or not.

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post #381 of 390 Old 02-10-2018, 04:28 AM
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So what is the most current recommendation on mics to take measurements in REW with? Still the UMIK1?
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post #382 of 390 Old 02-10-2018, 06:31 AM
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^^^^^^^^AFAIK, yes.

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post #383 of 390 Old 02-10-2018, 12:57 PM - Thread Starter
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umik1 is the easiest way to get reliable and accurate measurements. It has some shortcomings, but still better than anything else in that price bracket.
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post #384 of 390 Old 02-11-2018, 04:59 AM
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Quote:
Originally Posted by notnyt View Post
umik1 is the easiest way to get reliable and accurate measurements. It has some shortcomings, but still better than anything else in that price bracket.
HI, new here, but i was reading this thread and i am looking myself for an affordable "good" measurement mic

I need a measurement mic for two things:
  1. measure my speakers for crossover design
  2. Measure the room

Is the Umik capable of both? i heard you needed a mic with loopback for measuring your speakers for crossover design.
Although i could be completely wrong because it's all new to me
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post #385 of 390 Old 02-11-2018, 06:34 PM - Thread Starter
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Quote:
Originally Posted by lazy_mosquito View Post
HI, new here, but i was reading this thread and i am looking myself for an affordable "good" measurement mic

I need a measurement mic for two things:
  1. measure my speakers for crossover design
  2. Measure the room

Is the Umik capable of both? i heard you needed a mic with loopback for measuring your speakers for crossover design.
Although i could be completely wrong because it's all new to me
umik1 can do this without any issues. no loopback needed since it has the usb audio interface built in and is factored into the calibration.
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post #386 of 390 Old 02-12-2018, 04:05 AM
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Quote:
Originally Posted by notnyt View Post
umik1 can do this without any issues. no loopback needed since it has the usb audio interface built in and is factored into the calibration.
Is the UMIK1 still reliable and accurate if purchased from MiniDsp direct with the generic calibration files that they use? Are there any other mics you guys would recommend other than the UMIK1 in the sub $250 price ranges? I wish that we had a better tutorial on how to setup REW and take measurements from a PC or MacBook using a UMIK1.
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post #387 of 390 Old 02-12-2018, 10:25 AM - Thread Starter
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Quote:
Originally Posted by Tip24/96 View Post
Is the UMIK1 still reliable and accurate if purchased from MiniDsp direct with the generic calibration files that they use? Are there any other mics you guys would recommend other than the UMIK1 in the sub $250 price ranges? I wish that we had a better tutorial on how to setup REW and take measurements from a PC or MacBook using a UMIK1.
There are plenty of tutorials around, but it's pretty straight forward. REW detects the umik, then asks for your cal file (which varies depending upon mic orientation).

The MiniDSP cal files aren't as accurate as one you'll get if you order from CSL.
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post #388 of 390 Old 03-31-2018, 01:10 AM
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What was the final conclusion:

Can the Audyssey calibration mic from AV Receiver with Audyssey MultEQ XT be used with REW?

I have Denon X1200w (MultEQ XT) and was wondering if I could use the calibration mic with REW to measure the room FR. I don't mind +/- 2dB errors but I would mind +/- 10dB errors. What settings I need to touch to make it work decently? What kind of accuracy can I expect when connecting to a decent PC motherboard mic in (Realtek® ALC1150).

Or should I just forget the whole things and buy UMIK-1? (any other good and cheap candidates?)

Avr: Denon AVR-X1200W, speakers: 2 x Revel F36, TV: LG 55C7V
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post #389 of 390 Old 03-31-2018, 02:54 PM - Thread Starter
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Originally Posted by Paapaa View Post
What was the final conclusion:

Can the Audyssey calibration mic from AV Receiver with Audyssey MultEQ XT be used with REW?

I have Denon X1200w (MultEQ XT) and was wondering if I could use the calibration mic with REW to measure the room FR. I don't mind +/- 2dB errors but I would mind +/- 10dB errors. What settings I need to touch to make it work decently? What kind of accuracy can I expect when connecting to a decent PC motherboard mic in (Realtek® ALC1150).

Or should I just forget the whole things and buy UMIK-1? (any other good and cheap candidates?)
It should be within a couple db.
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post #390 of 390 Old 05-22-2018, 03:08 AM
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My Audyssey mic experience

For what it's worth, ie coming from a complete novice, I tried my Audyssey mic today and it seems to work great!

The steps I followed were:

1 - Read this entire thread just to really, really know the Audyssey mic works great!

2 - Install REW on wifes laptop

3 - Plug Audyssey mic into laptop multipurpose headphone/mic jack

4 - Plug wifes laptop into AVR via HDMI

5 - Watch and follow instructions in this very good 15 minute youtube video by

6 - I think the only thing I did a little differently was to set the output device to my Onkyo pre/pro and leave the input as Default (tho this is not necessary).





Close mic'ed Apline SWR-1522D Budget Build, LR HP at 20hz, low pass at 80hz



At MLP no HP, low pass at 200hz



Each time I re-measured I got very similar results, I felt that this means it's consistent, notwithstanding it may not be a precise measurement like a professional mic discussed here in this thread.

Many thanks to all for this very valuable thread!

Edit: I just purchased the Onkyo (Pioneer!) TX-RZ3100. This unit is really just a Pioneer in Onkyo clothing. Anyway it comes with the Pioneer measurement mic for AccuEQ.

Last night a figured I'd try measuring the Audyssey vs AccuEQ/Mcacc mic....



Measured close mic'ed response of my SWR-1540 Budget Build, no filters, no eq. Audyssey is the upper (green line), AccuEQ mic is the lower red line, both measured at the same output level ....

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