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Search: Posts Made By: HifiZine
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-19-13, 02:03 PM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

Sorry, just trying to help... my bad.
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-19-13, 04:38 AM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

I could, but I think it's become pointless, there's too much jostling and weird agendas going on now. It's a $75 microphone for goodness sake! PM me if you really need something specific and why.
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-19-13, 04:00 AM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

If you need your plots to reflect the actual SPL at which the measurement took place, yes. If you only need relative frequency response, no.
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-19-13, 12:32 AM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

Hi Rob, I've been using a 4 m cable (13 ft) without problem. The connector on the mic end is a "mini B" connector - http://en.wikipedia.org/wiki/Universal_Serial_Bus#Mini_and_Micro_connectors
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-18-13, 02:09 AM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

Hi monomer, thank you for the kind words :) That article will I hope still be useful, although it of course has nothing about the UMIK. It also pre-dates the REW integration with miniDSP, so just...
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-18-13, 02:04 AM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

Hi thatsnasty, if your speakers are highpassed at 50 Hz then you would expect to see a lower reading at 20 Hz even if the mic were perfectly flat. If they show equal... well I'm confused. Perhaps you...
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-16-13, 06:51 PM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

You can use the mic without the cal file, at least it will get you started, they are not that far off out of the box. You'll have a big learning curve with REW anyway. The two I have measured seem to...
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-14-13, 05:13 PM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

Have you looked at the vertical scale on the graphs? The "dip" is about 0.15 dB...
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-12-13, 09:15 PM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

Response from miniDSP:

http://www.minidsp.com/forum/18-umik-questions/7851-calibration-file-question-about-freq-range?limit=6&start=24#7907
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-12-13, 09:12 PM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

Um... that's my measurement :) The point of it is that the adjustment to the cal file that I suggested above will probably be a reasonable workaround, not to speculate on what/why miniDSP did ;) I...
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-12-13, 06:40 PM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

A simple solution - if only temporary - for those who have the mic already would be to simply replace the lines below 812Hz with a single line at 20 Hz, which has the value recorded for 812 Hz. In...
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-12-13, 02:55 AM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

I can log in without a problem.. try the "Forgot password" or "Forgot username" links ;)

http://www.minidsp.com/component/user/reset
http://www.minidsp.com/component/user/remind
Forum: SPL Meters | Mic's | Calibration | Sound Cards   02-11-13, 10:03 PM
Replies: 886
Views: 247,035
Posted By HifiZine
Re: MiniDSP UMIK-1 Microphone

I believe those are the cal files without transposition or adjustment. It looks like an acoustic measurement above 812 Hz was spliced onto some sort of "null" measurement below, the numbers 802 Hz...
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