NoiSee vs Decibel Meter Ultra

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

Measure, record and track sound levels in your environment with Decibel Meter Ultra, the all-in-one sound level meter, dosimeter and real-time analyzer. From monitoring sound levels at home, noise levels in the workplace, to calibrating the speakers of your hi-fi, Decibel Meter Ultra makes it easy to get the information that you need. Precision Metering For Sound: Get accurate sound level readings using industry standard measurement methodologies, selectable A, C and Z frequency weighting curves, fast and slow time-weightings, plus concurrent peak level measurement. Choose from the built-in microphones on your device or connect an external microphone* for an even broader dynamic range. Eliminate Nuisance Noise: Getting proof is as simple as tapping a button. Catch and log problem noise as it occurs. Overlay live video with sound levels, or create comprehensive acoustic analysis reports that you can share easily via PDF. Visualize sound levels over time and gather the evidence that you need to take decisive action. Safeguard Your Hearing: Stay aware of noise levels in the workplace and compare against industry-mandated safe levels using the built-in dosimeter. Select from default measurement profiles based on published recommendations from NIOSH and OSHA, or if you’re working against a different specification, create your own. Elevate Your Home Audio: Get the best from your home audio system with powerful fractional octave band analysis. Fine-tune your equipment using up to twelfth octave-band resolution, variable time weightings and peak level indicators so that you can enjoy music and movies like never before. Download now and take advantage of our free plan which includes our built-in metering profile and up to two-minute recording durations. Or choose one of our PRO plans and gain access to everything the app has to offer, including our full suite of professional metering options, custom meter profiles, analysis charts, PDF reports, background recording, unlimited recording durations and more. *External microphones require calibration against a reference sound level source The data provided by Decibel Meter Ultra is for educational and informational purposes only. Please refer to the disclaimer in the Terms of Use for further information. Terms of Use: https://decibelmeterultra.com/terms Privacy Policy: https://decibelmeterultra.com/privacy