A continuous traffic light
The background fades from green to yellow to red as the noise rises, with a single status message. It is a relative level, not a calibrated sound meter.
Android application · v1.1.0
Noise Traffic Light shows the noise level around you in real time using your device's microphone. Perfect for offices, study rooms, classrooms or any environment where noise control matters.
The background fades from green to yellow to red as the noise rises, with a single status message. It is a relative level, not a calibrated sound meter.
Once you allow it, the app listens on its own while the screen is visible and pauses when you leave. Audio is analysed on your phone and is neither saved nor sent.
Tune the sensitivity to your room: higher values detect quieter sounds.
Gentle chime, two soft bells, soft beep or visual only, with volume, duration and minimum time between cues, plus a button to test the sound.
A five-step tutorial you can repeat any time from the menu.
Available in 16 languages, with light and dark modes.






Get Noise Traffic Light on your device and start controlling ambient noise today!
Developer: OddKernel · © 2025-2026 OddKernel. All rights reserved.