![]() ![]() Most importantly, record something you know well and use your ears. So, using a graphic equalizer (or a parametric with a Q of 1), apply the inverse EQ, -7db at 2,000 Hz. ![]() This should give you a FLAT response.įor example - let's say your mic has a boost in the mid with the peak being at 2,000 Hz by about 7db. The end goal is to flatten the peaks and valleys of the frequency response for your mic.Īnalyze the EQ of the white noise and apply the INVERSE EQ to what you recorded. Also, do your best to control reflections in the room by hanging blankets or sound baffles on the walls. Try to get a good strong gain from the mic by turning up the noise volume. Place the loudspeaker directly in front of your mic at about 4-6 feet away. I just did a google search and funnily enough turned up another audio-express article on diy mic calibration.I would generate a white noise audio file and play it back over a single loudspeaker. if you subtract the calibrated curve from the uncalibrated curve the result should be the difference between the two which I guess you export and put into the calibration file format. I think the method is to measure a good speaker with the calibrated mic, then measure with the uncalibrated mic in the exact same position. ![]() I've read somewhere before about making calibration files, but I can't remember where. (certainly the old one had become so, the measurements this afternoon are actually quite flat from 2000 to about 15000 Hz), and I have no doubt now as to why something doesn't sound right I end up setting the tweeter padding by ear as when I do it with the mic they sound too high to me, that may be my taste or it might be the mic is reading lower than it should at high frequencies. My mic is not calibrated unfortunately, but the particular capsules I have (panasonic WM-60AY) are supposed to be very flat so I'm not worrying about it too much. I made some more measurements this afternoon, the spicing nearfield to farfield thread has deviated quite a bit from the original topic, but has been very beneficial for me that it has Sorry it was me having a blonde moment You are of course correct and there is nothing wrong with your phrasing I was looking at the absolute values when I should have been looking at the relative! ![]()
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