Sound level meter
Phones are not calibrated sound-level meters. This shows relative dBFS from your microphone (typically −∞ to 0). Values are not dB SPL and should not be used for safety, legal, or medical decisions. Levels vary by device, position, and gain.
— dBFS
Peak —
Start microphone
Stop
Copy reading
Reset peak
Download log
Tap Start and allow the microphone.