Open the app and allow microphone access when iOS asks. The Meter tab shows the live SPL estimate, min, average, max, peak, and hearing-safety context.
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Sonance Support
Help for Sonance, the private sound-level meter and spectrum analyzer for iPhone and iPad.
Open the Frequency tab to view either live spectrum bars or the scrolling spectrogram. Use this view to see where the strongest low, mid, or high frequency energy sits.
The Reference tab includes everyday sound examples plus bundled test tones, noise, a sweep, and ambience clips. Tap a clip to play or stop it.
In Settings, adjust Calibration if you have a known sound-level meter nearby. Play the 1 kHz tone and adjust the offset until Sonance aligns with the reference reading.
If the meter does not move and microphone access was denied, open the iOS Settings app, find Sonance, and enable Microphone. Sonance does not record or upload microphone audio.
Device microphones are not certified measurement instruments. Sonance provides estimated levels and educational context, not medical advice or certified compliance measurements.
Tap Save on the Meter tab to store a numeric snapshot. Open Settings, then Saved Sessions, to view the field report with total time, estimated equivalent level, peak, projected dose, time-left estimate, and CSV export. Saved sessions contain levels, duration, weighting, timestamp, and a label. They do not contain audio.
Contact through the App Store product page with your device model, iOS version, app version, and a short description of what happened.