SOUND TOOLS
White, pink and brown noise
Play continuous noise for a background sound. Choose white, pink or brown and an optional stop timer.
Start quietly. Stop immediately if uncomfortable. Volume settings are not calibrated safe levels.
Ready when you are
Keep this page open. White noise may continue in a background tab, but your browser or screen lock can interrupt it. The timer is not an alarm.
01 / Meter
How to use this tool
- Start with device volume low.
- Choose a noise color and timer, then start.
- Keep the sound unobtrusive and stop when finished.
02 / FAQ
Frequently asked questions
How do the noise colors differ?
White has equal power per hertz; pink has equal power per octave; brown falls more steeply at higher frequencies.
What are the limits?
No sleep or health benefits are promised. Never use a volume percentage as a safe listening reference.
03 / IPHONE APP
Keep your noise checks together
dB Pulse: Decibel Meter is for iPhone with iOS 26+. Keep track of daily noise dose, sustained-noise alarms, saved sessions, Lock Screen Live Activity and widgets.
Pro adds advanced alarms, a spectrum analyzer, unlimited history, report export, session notes, supported microphone profile matching and an Apple Watch meter.
Back to the meter ↗