Assuming I can figure out how to load the my microphone's calibration file into REW, will the real time spectrum (RTA) reflect the corrected/calibrated results?
I assume it would, but I want to be sure before I put a bunch of effort into loading the calibration file only to find out that it does not.
Thanks,
Eric
I assume it would, but I want to be sure before I put a bunch of effort into loading the calibration file only to find out that it does not.
Thanks,
Eric
Yes, it would. But if you export the impulse response, REW does not put out the corrected response. You should read the manual to verify.
Hmm, it's starting to look like my Dayton Audio iMM-6 calibration file won't work as I hoped with REW. Apparently REW can only use the calibration file if the mic is a USB mic. Is that correct? That's what the instructions seem to say.
If so, it looks like maybe the miniDSP UMIK-1 and Dayton Audio UMM-6 usb mics would work. Is one of these better than the other? Are there any better options is the same price range?
Eric
If so, it looks like maybe the miniDSP UMIK-1 and Dayton Audio UMM-6 usb mics would work. Is one of these better than the other? Are there any better options is the same price range?
Eric
The iMM-6 cal file should work. All the file does it applies the correction to the frequency response.
I am looking at the EMM-6 and the REW software, and am curious if I will need an SPL meter or anything to get everything calibrated, or if the cal file is all I need to be able to get started? I have a Steinberg CI2 audio interface with 48v phantom power. I am just confused as to whether I will need a normal SPL meter or not if I go with the EMM? Or should I be looking at the USB mic instead? Sorry if this derailed the OP's thread.
But how does one calibrate the initial levels on it? The USB one I can understand because it's gain is predetermined, but my audio interface gain is variable, therefore cannot understand how REW's SPL meter would be accurate without calibration using a manual SPL meter.
Mortron, If I were you I'd get the USB. Also, according to the REW manual you don't need to calibrate the sound card with the loop back.
It seems like there are two different types of calibration being talked about here. The first is frequency response calibration, where the calibration file is used to correct for deviations from flatness in the mic's response.
The second is absolute SPL level calibration. ie when REW says it has seen 90db it really is 90db.
Depending on what you are wanting to do the second is probably less important. If you just want to take measurements for crossover design, or for room correction, knowing accurately the absolute SPL is not really necessary, as it is the relative levels you are interested in.
If you want to be able to measure that you meet reference levels at the listening position however then the SPL level calibration will be important 🙂
edit: having said that I've done neither 😀
Tony.
The second is absolute SPL level calibration. ie when REW says it has seen 90db it really is 90db.
Depending on what you are wanting to do the second is probably less important. If you just want to take measurements for crossover design, or for room correction, knowing accurately the absolute SPL is not really necessary, as it is the relative levels you are interested in.
If you want to be able to measure that you meet reference levels at the listening position however then the SPL level calibration will be important 🙂
edit: having said that I've done neither 😀
Tony.
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