Decibel Meter — Sound Level

Decibel Meter is the most accurate, easy-to-use sound level meter app for Android.
Instantly measure noise levels around you using your phone's built-in microphone —
no extra hardware needed.

🎯 WHETHER YOU NEED TO:
• Check if your workplace meets safe noise regulations
• Measure how loud a concert, gym, or restaurant is
• Monitor your baby's room or home environment
• Test speaker and audio equipment output
• Protect your hearing from dangerous noise exposure

🔊 KEY FEATURES

• Real-Time dB Gauge — Live animated circular meter updates every 50ms
• Colour-Coded Zones — Green (Quiet), Yellow (Moderate), Orange (Loud), Red (Dangerous)
• Smart Labels — Automatic descriptions: Silence, Whisper, Library, Conversation, Traffic, Concert, Jet Engine
• MIN / AVG / MAX Stats — Track your session's noise statistics live
• Peak Hold — Freeze the peak reading for easy reference
• History Log — Review your last 20 peak readings with timestamps
• 100% Offline — No internet required for measurement
• No Sign-up — Open and start measuring instantly

📊 DECIBEL REFERENCE GUIDE

0–20 dB — Silence (empty room)
21–40 dB — Whisper (library)
41–55 dB — Quiet office
56–70 dB — Normal conversation
71–85 dB — Heavy traffic / vacuum cleaner
86–100 dB — Concert / power tools ⚠️
101–120 dB — Jet engine / hearing damage risk 🚨

⚠️ HEARING SAFETY

Prolonged exposure above 85 dB can cause permanent hearing damage.
Use this app to stay aware of your sound environment and protect your hearing.

Note: Measurement accuracy depends on your device's microphone quality.
For certified professional measurements, use a calibrated sound level meter.

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