Sound Meter: dB & Noise Level turns your Android phone into a simple decibel meter to measure environmental noise, track sound levels over time, and help you understand when it's time to protect your ears. App Highlights: Measure real-time environmental noise in decibels (dB) Large analog-style dial displaying current, average, and maximum sound levels Sound level descriptions, from a quiet library to a busy restaurant Live sound chart showing the last 30 seconds of measurements Customizable loud-noise warnings with adjustable thresholds and duration Daily noise dose tracking based on the widely used 85 dB for 8 hours guideline A, C, and Z frequency weighting options Fast, Slow, and Impulse response modes Chart, bar graph, and frequency spectrum visualization options Automatic detection and marking of sudden loud sounds Microphone calibration with a referenc...