MiniDSP UMIK-1 Microphone - Page 8 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #71 of 887 Old 12-19-12, 02:23 AM
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Quote:
ophir wrote: View Post
one thing I've noticed is the "dB FS In" is really low, ~ -36. I haven't figured out a way to get it up to the recommended -18. Mic mixer volume in Win 7 maxed out at 100 and input volume maxed out at 1.00. Does dB FS In need to be -18 or is -36 ok?
It is fine as is, the UMIK can measure up to 130dB, so signal levels are lower at normal test levels.
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post #72 of 887 Old 12-19-12, 08:05 AM
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Re: MiniDSP UMIK-1 Microphone

I have been getting a similar message, stating that REW expects levels at -10dB or higher, but it will still plot the curves for me. I still have lots room to increase volume, just getting used to the way it works before doing so.
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post #73 of 887 Old 12-19-12, 11:47 AM Thread Starter
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Re: MiniDSP UMIK-1 Microphone

I have updated the first post to include measurement comparisons between three mics I have, all with calibration files.


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Last edited by JohnM; 12-19-12 at 03:21 PM. Reason: Fix typo
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post #74 of 887 Old 12-19-12, 01:01 PM
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Re: MiniDSP UMIK-1 Microphone

Thanks for that !



That difference of @ 7.5db at 10K is quite significant ( & very much in keeping with what Herb recently discovered when comparing his calibration vs P.E.s, for the same UMM-6 microphone ).


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post #75 of 887 Old 12-19-12, 03:22 PM
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Re: MiniDSP UMIK-1 Microphone

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I have been getting a similar message, stating that REW expects levels at -10dB or higher
Are you using V5.01 beta 10?
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post #76 of 887 Old 12-19-12, 03:37 PM
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Re: MiniDSP UMIK-1 Microphone

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Are you using V5.01 beta 10?
I think I am running 5.0 (on OS X). I don't have an SPL meter, so I just went with a level that would give me plots and ignored the message for now.
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post #77 of 887 Old 12-19-12, 04:59 PM Thread Starter
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Re: MiniDSP UMIK-1 Microphone

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Thanks for that !



That difference of @ 7.5db at 10K is quite significant ( & very much in keeping with what Herb recently discovered when comparing his calibration vs P.E.s, for the same UMM-6 microphone ).


It could be differences in calibration methods and mic orientation. To be more precise I should use the orientation for which the mic is calibrated... and I did not give that much thought at the time... all were at 90°. I think I have two files from Herb on my ECM8000... one for 0° and one for 90°, if I am remembering correctly. Of course I can't hear 10kHz very well anyway, so for me it would not be significant.


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post #78 of 887 Old 12-20-12, 06:20 AM
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Re: MiniDSP UMIK-1 Microphone

Can the UMIK-1 function as an accurate SPL meter? If yes, how to set it?
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post #79 of 887 Old 12-20-12, 10:11 AM Thread Starter
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Re: MiniDSP UMIK-1 Microphone

I don't think there is anything to set with REW, just plug 'n' play and it works as an SPL meter.


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post #80 of 887 Old 12-20-12, 10:38 AM
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Re: MiniDSP UMIK-1 Microphone

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I don't think there is anything to set with REW, just plug 'n' play and it works as an SPL meter.
On the OS X version as well? Maybe I misunderstood.
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