4/16/2024 0 Comments Decibel scale onlineStep 2: Using the calibrated NIOSH app as a guide, calibrate the online sound meter above. Step 1: Use an acoustic calibrator and calibrate an iPhone sound meter using the free NIOSH SLM app made by the CDC. Just as an example, one sequence to calibrate both the online sound meter and headphones for hearing testing is as follows ( watch video). Headphones Manual Calibration (Use with Caution) Obviously, this method of calibration only works if the sound meter is accurately calibrated first. KeepĪdjusting the volume manually on your device's keyboard or headphone so that it averages around the specified decibel ± 3 dB (do not digitally adjust the volume which should be kept at the maximum setting). Microphone and play the calibration file below. If the sound meter is manually calibrated to perfection, it can also now be used to moreĪccurately calibrate the headphones before starting the hearing test too! Place the headphones over the Watch video of how to perform a headphone calibration using a sound meter. This calibration is saved on yourĬomputer/device as a cookie and would have to be repeated if cookies are deleted and/or browser cache Sound meter (click the grey bar) using the plus and minus buttons. Or acoustic calibrator, you can manually calibrate the In any given home, the most quiet place to perform a hearing test accurately will be Red being anything greater than 60 dB. Orange being loudness level between 50 - 60 dB.Blue being loudness levels between 40 - 50 dB.
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