- #CALIBRATE MICROPHONE FUZZMEASURE HOW TO#
- #CALIBRATE MICROPHONE FUZZMEASURE PRO#
- #CALIBRATE MICROPHONE FUZZMEASURE PLUS#
Someday, a laser-based method could be commercialized to become a completely new way to do extremely sensitive, low-uncertainty calibrations of microphones in the field, in places such as factories and power plants. The technique, which uses lasers to measure the velocity at which a microphone’s diaphragm vibrates, performs well enough to overtake one of the main calibration methods used at NIST and throughout industry.
![calibrate microphone fuzzmeasure calibrate microphone fuzzmeasure](https://www.hifizine.com/files/2012/12/Figure-5.-Supertweeter-measurement.png)
Also hope you guys don't think this is blogspam, just trying to do my part with helping the community, it's much easier to write and post with pictures in wordpress.Researchers at the National Institute of Standards and Technology (NIST) have conducted the first demonstration of a faster and more accurate way to calibrate certain kinds of microphones. Hope this little guide will help you get an accurate picture of what your gear is doing. Now tweak your gear and take measurements whenever you want.Be sure to then set Frequency>Lock Graph Extents otherwise it’ll automatically change the scale to fit each measurement. Go to Frequency>Set Graph Extents I usually go with 10Hz to 30000Hz and -20dB to 20dB. At this point I like to lock down the axis of my graph.This will give us a baseline for the rest of the tests and you’ll see if the gear is doing anything funny while in bypass. Now connect your gear, put everything into bypass and press Measure again.You’ll also notice that this puts the magnitude centered around 0dB, making all our measurements even easier to see. For me it usually drifts a tiny bit below 20hz and a little more so around 40kHz but it’s close enough. The resulting Sweep will be pretty darn close to flat. Now in the top part of that window select Calibration.txt for the Calibration Record. Find that Calibration.txt file you just made and press Open.
![calibrate microphone fuzzmeasure calibrate microphone fuzzmeasure](https://macx.ws/uploads/posts/2017-02/thumbs/1487663425_fuzzmeasure_03.png)
#CALIBRATE MICROPHONE FUZZMEASURE PLUS#
Now go to Window>Microphone Calibration and press the plus sign.Go to Frequency>Export Frequency Graph Data. Connect the input to the output and press Measure, this will be our calibration.The duration does effect the quality of your sweep. Sine Sweep Settings: check out the settings I use.Turn off Device Correction, we’re going to calibrate before we start sweeping. Audio Capture Settings: I use input and output 5, this way I never have to listen to the sweep and I never use those for anything else but testing gear.IMPORTANT: Set the output level pretty low, FuzzMeasure outputs at or near 0dbFS which means any boost to the signal distorts the results. With my 002 I run CoreAudio and then set the sample rate in Audio Midi Setup.
#CALIBRATE MICROPHONE FUZZMEASURE HOW TO#
Hopefully you already know how to get your interface working with FuzzMeasure.
![calibrate microphone fuzzmeasure calibrate microphone fuzzmeasure](https://i.pinimg.com/736x/a3/88/ec/a388ec068d3be068d11e7f9afe042539--labs-software.jpg)
I think the ability to useĩ6kHz is a huge benefit as it lets you sweep up to 48kHz (see Nyquist). My setup is simple, a Digidesign 002r and some TRS to XLR cables.
#CALIBRATE MICROPHONE FUZZMEASURE PRO#
I’ve used FuzzMeasure Pro before for measuring room acoustics but hadn’t used it for measuring gear yet, I’ve heard it was possible but hadn’t found any specific instructions on how to do it, with some playing around I think I’ve found a good method for testing gear with this awesome piece of software. I used to just use white noise and a Pro Tools plug-in to make estimates of what was going on but I wanted a more accurate idea of what my gear was doing. The last couple of days I’ve been posting frequency responses of the EQs I’m building at the moment. Hey guys, I figured out a way to use FuzzMeasure Pro to make sweeps of gear and just wrote a quick tutorial.