Sound Meter - Decibel dB

Sound Meter turns your phone into an easy-to-use decibel meter (dB meter), noise meter and SPL meter for real-time sound level measurement.

Measure environmental noise, check room volume, or monitor workplace sound levels — with a clean gauge, live chart, and saved history in one app.

KEY FEATURES
• Real-time decibel (dB) readings with smooth gauge display
• Live chart view to track noise changes over time
• Peak, minimum and average values for each session
• Save, review and share your measurements
• Calibration offset for more accurate results on your device
• Two modes: Continuous (high accuracy) and Low Power (battery saving)
• Safety alerts at 85 dB and 100 dB (WHO hearing guidelines)
• Reference guide for common sound levels (whisper to jet engine)
• English and Turkish — full app localization
• Local storage only — your readings stay on your device
• Modern Material Design 3 interface, optimized for Android 12+

PERFECT FOR
• Environmental noise monitoring
• Workplace and office noise checks
• Home, classroom and nursery sound levels
• Home theater and audio setup
• Events, concerts and loud environments
• Students, parents and everyday sound awareness

HOW IT WORKS
Sound Meter uses your device microphone to measure sound pressure level (SPL) and display results in decibels (dB). Switch between gauge and chart, start a session, then save peak/min/avg data when you are done.

IMPORTANT NOTE
Phone microphones are designed for voice, not lab-grade SPL meters. Very loud sounds may hit device limits, and readings can differ from professional calibrated equipment. Use this app as a practical noise level meter and sound test tool — for certified workplace compliance, use a calibrated sound level meter.

Download Sound Meter now — measure noise, track dB levels, and protect your hearing with timely alerts.

Privacy-focused design. Regular updates. No account required to measure.