Soundmeter is a high-precision decibel meter and noise analyzer designed for Android devices. This application leverages built-in smartphone microphones to deliver real-time sound level measurements, making it an effective tool for monitoring noise pollution in various environments. It features a user-friendly interface that displays noise levels through numeric values and dynamic waveform charts with updates every millisecond. Additionally, the app includes a calibration function to ensure accurate measurements across different devices, providing reliable results for users.

The application also offers contextual noise references, comparing measured levels to familiar scenarios with color-coded safety indicators to help users understand the implications of noise exposure. A smart alert system allows for customizable threshold notifications, adhering to WHO-recommended limits for hearing protection. With its compliance to IECstandards and low power consumption, Soundmeter is suitable for households, workplaces, and industrial sites, making it an essential tool for anyone concerned about noise levels.