NoiseMeter - See what you hear

Precise Sound Meter & Noise Detector. Measure environmental dB levels instantly.

NoiseMeter is a powerful Sound Meter / Noise Meter / Decibel Meter (dB Meter) / Sound Level Meter (SPL Meter) that turns your smartphone into a professional noise measurement tool. Instantly measure environmental noise, visualize sound levels, and stay aware of your surroundings with real-time decibel readings.

Whether you want to check how loud your room is, monitor workplace noise, measure traffic sound levels, or test speakers—NoiseMeter gives you fast, reliable, and easy-to-understand results.

🔊 Why NoiseMeter?

NoiseMeter uses your device’s built-in microphone to provide real-time sound level measurements. Designed with clarity and accuracy in mind, it provides all essential noise-monitoring tools in one simple app.
Perfect for:

➤ Noise testing

➤ Sound level monitoring

➤ Environmental noise measurement

➤ Protecting your hearing

➤ DIY acoustic checks

➤ Classroom, workplace, or home noise analysis

🎯 Key Features

✔ Real-Time Sound Measurement

Get instant decibel (dB) readings with smooth, real-time updates.

✔ Accurate Noise Levels

Displays current, minimum, maximum, and average sound levels during a measurement session.

✔ Live Graph Visualization

Track noise activity with a clear, dynamic graph.

✔ Easy Calibration

Improve accuracy by adjusting calibration to match real SPL meters.

✔ Clean & Simple UI

A lightweight, fast, and user-friendly design suitable for everyone—from beginners to professionals.

✔ One-Tap Controls

Start, pause, or reset your noise test in seconds.

✔ Compact & Battery-Friendly

Optimized so you can measure sound levels for long durations without draining your device.

📊 Noise Level Examples

Use NoiseMeter to compare everyday sound levels:

140 dB – Gunshot

120 dB – Thunder

100 dB – nightclub

80 dB – Heavy traffic

60 dB – Normal Conversation

30 dB – Whisper

10 dB – Breathing

🌟 IMPORTANT NOTE ON ACCURACY

Please note that NoiseMeter relies on your smartphone microphone. Most mobile microphones are aligned to the human voice (300-3400Hz) and may limit measurement of extremely loud sounds (over 100dB). For professional-grade physics experiments or industrial safety compliance, we recommend using a certified industrial Sound Level Meter. However, for daily use, home measurement, and general noise detection, NoiseMeter provides highly reliable results.

Protect your family's health and your hearing today. Download NoiseMeter—the ultimate Sound Pressure Level (SPL) and Decibel (dB) tool for Android.