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.