Noise Meter

Noise Meter turns your phone into a practical sound-level companion for everyday environments.

See the current estimated sound level at a glance, follow changes on a live trend chart, and inspect relative frequency strength with the spectrum view. Use guided tests for common situations or compare two conditions from the same position to understand how a change affects the reading.

Features:

• Live estimated sound-level meter with minimum, average, and maximum values
• Color-coded noise ranges and familiar sound-level references
• Live trend and relative spectrum views
• Guided tests for rooms, offices, appliances, cars, and outdoor spaces
• Before-and-after comparison measurements
• Calibration offset for use with a trusted reference meter
• Local measurement history with editable names and notes
• PNG report and CSV sharing
• Light and dark themes

Microphone audio is processed on the device. The app stores measurement results, not audio recordings.