聲音分貝計 - DecibelMeter

DecibelMeter is an environmental noise monitoring tool that measures ambient sound intensity in real time using your phone's microphone. 🎚️ Main Features Real-time display of current ambient decibel levels Statistics on minimum, average, and maximum values Built-in real-time sound waveform display Automatic environment type determination (quiet/normal/noisy/dangerous) Supports resetting statistics to restart recording 📊 Ambient Noise Comparison Below 30 dB: Extremely quiet (recording studio) 30–45 dB: Quiet (library, late at night) 45–60 dB: Normal indoor (office) 60–75 dB: Somewhat noisy (restaurant, street) Above 75 dB: Noisy, exposure reduction recommended ⚠️ Precautions This application is a relative measurement reference tool. Values ​​are for reference only and do not represent professional calibration results. It is not suitable for legal or engineering purposes.