Measuring sound is what we do. NoiSee — Worthy of the name "Sound Level Meter"
NoiSee is an intuitive professional-grade sound level meter for iPhone and iPad. It features all the tools expected from a professional ANSI or IEC compliant Sound Level Meter. All filters, averaging modes and statistics meet or exceed class 2 requirements of the relevant ANSI and IEC standards. NoiSee is specifically designed for Occupational Health and live-sound measurements. It was created by a team with over 20 years of experience in calibration, owning a Sound Level Meter calibration laboratory meeting ISO 17025 requirements. The same calibration equipment was used to develop this app.
IMPORTANT NOTE
Supported devices with a calibrated and frequency-response-compensated internal microphone:
iPhone 12 mini, 12, 12 Pro Max, 13, 15, 16 Plus, 16e, 17 Pro Max, iPhone Air; iPad (9th gen), iPad (10th gen).
The app also includes parameters and UI optimised for live events and live audio monitoring, including running LAeq (5, 10, 15 and 20 min averaging intervals).
The initial calibration is determined by testing in an anechoic chamber meant for calibration of professional Sound Level Meters. We do not recommend changing it on supported devices, as internal microphone sensitivity varies insignificantly between units of the same model.
Requires iOS 17 or later. Dynamic range approximately 40–100 dB (re. 20 µPa); frequency range 40 Hz – 18 kHz.
SOUND LEVEL METER
History (profile) view of all relevant parameters. Statistics view of the current measurement (ISO 1996 percentiles), also visualised as a histogram.
• Time weightings: Fast, Slow, Impulse, Equivalent
• Parameters: LAeq, LCpeak, LAFmin, LASmax, SPL, and more
• Spectrum view: time-history of frequency- and time-weighted level. CPB analysis per IEC 61260 and ANSI S1.11, from 1/1 down to 1/24 octave.
NOISE AT WORK
Occupational-health compliant (ISO 9612, OSHA, NIOSH): Noise DOSE, elapsed time, LEX 8h, Projected DOSE, Time to reach 100% DOSE. Threshold, reference level and exchange rate can be set to custom values.
EXTERNAL MICROPHONES
Tested with MicW i436, i437 and D236, and Dayton Audio iMM-6 and iMM-6C — calibrated measurement microphones complying with Class 2 (IEC 61672). With an acoustic calibrator, NoiSee can calibrate automatically. Connect via USB-C, or via the Apple USB-C / Lightning to 3.5 mm adapter.
IN-APP PURCHASES
Premium octave analysis:
• Non-standard time weightings (1/16 s up to 16 s)
• Spectrum in 1/3 octave or finer
Logging:
• One-second logging of spectrum and total parameters
• Profile view beyond 2 minutes
• CSV export
Recording:
• 24-bit WAV or AAC
Reporting:
• PDF report export
Seems like a nice sound level app. It hangs and locks up when opening. Only way to get it to run is to reboot it by swiping it closed and restarting it. It works fine till I close it and try and run it again at which time it is locked up
There are better for less
Josh 17p
I am a regular user of the NIOSH sound level meter developed by this company. Today I found the NOiSee dB meter and from the description, it sounded like it fit what I was looking for- mostly over the NIOSH app is the ability to see graphed results. First the good- the best part about this app is the time to 100% dose. Helpful for workplace sound surveys. The bad- for US/ OSHA, there are too many unnecessary features. The resolution in the graphs are way too big. 10 seconds? Won’t show echos or secondary pulses. The biggest negative is you can’t save or send a survey. That costs extra, not explained in the description. $0.99 won’t break the bank but the NIOSH dB meter has better functionality for free, however it does only measure to OSHA or NIOSH standards. I did use a QC-10 calibrator with a Dayton Audio iMM-6 external mic and had to correct -8.5. With the external mic after calibration, the readings are 2dB higher than my 3M Edge 4 dosimeter.
Gets the Job Done
JamesRobertBoring
For what I was needing this sound meter app got the job done. This app renders a lot of data that I did not quite understand but that is ok. As another reviewer stated, this app will fail upon startup at times but that is easily overcome. 5 stars!
Practical and useful!
Lukah24
I couldn't believe the functionality. All the relevant parameters and even dose is available on this iPhone sound level meter. And comparing it to my calibrated SLM it was very accurate. They deliver on what they promised. And they promised a lot!
- Up to 3.5x lower CPU usage
- Improved oscilloscope
- Configurable spectrum display modes
- Improved fullscreen mode
Version 3.1.0
The developer, EA LAB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
