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Amazon.com: sound level calibrator
https://www.amazon.com/sound-level-calibrator/s?k=sound+level+calibrator
Online Sound Meter
https://www.checkhearing.org/soundmeter.php
Step 1: Use an acoustic calibrator and calibrate an iPhone sound meter using the free NIOSH SLM app made by the CDC. Step 2: Using the calibrated NIOSH app as a guide, calibrate the online sound meter above. Step 3: Calibrate the headphones by changing the volume manually using the NIOSH app as a guide while playing the calibration audio files.
Get Audio Meter - Microsoft Store
https://www.microsoft.com/en-us/p/audio-meter/9wzdncrdkgt7
Audio Meter. Audio Meter is a Tool for audio level measuring in dB or dB (A) with a wide range of advanced features build in. Audio Meter is freeware (no commercials, no in app purchases, FREE!) (Feel free to donate on our website if you like it) Audio Meter can: • Measure Sound in dB and dB (A) • Measure Sound Frequency • Record SPL dB and dB (A) • Save/Load …
Calibrating levels using a Sound Level or SPL meter
https://support.denon.com/app/answers/detail/a_id/54/~/calibrating-levels-using-a-sound-level-or-spl-meter
Don’t worry, these gadgets are not expensive or difficult to use. Although unit-by-unit differences exist, here’s a brief overview of the calibration process: 1) Set your sound level meter (SPL meter) to "C" weighting. Don’t worry about other scales for now -- …
Galaxy Audio CM-C200 | Sound Pressure Level (SPL) Meter ...
https://www.galaxyaudio.com/products/cm-c200
The Galaxy Audio CM-C200 is a sound pressure level (SPL) meter calibrator. The CM-C200 meets IEC 60942 2003 Class 2 and ANSI S1.40-1984 standards. The CM-C200 can calibrate 1", 1/2" and 1/4" microphone capsules at 94dB and 114dB. The calibrator is designed to calibrate SPL Meters with a microphone diameter of 1/4", 1/2" and 1".
1910.95 App E - Acoustic calibration of audiometers ...
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.95AppE
(1) "Sound Pressure Output Check" A. Place the earphone coupler over the microphone of the sound level meter and place the earphone on the coupler. B. Set the audiometer's hearing threshold level (HTL) dial to 70 dB. C. Measure the sound pressure level of the tones at each test frequency from 500 Hz through 6000 Hz for each earphone. D.
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