An app from the urbanOS ecosystem

Measure insteadof arguing.

Car-meet scene, outdoor dining, construction site: Smart Noise measures around the clock in dB(A) — against day and night limits per zone, with alerts on violations. Levels only, never audio.

Opens the demo environment — simulated levels, no account needed.

Smart Noise is the sound app in the urbanOS ecosystem: level sensors measure LAeq/LAmax around the clock — turned into hotspot maps, automatic day/night limits, violation alerts and defensible 24h profiles. Objective values instead of complaint ping-pong.

Why it matters

With noise, it’s word against word.

Residents complain, the source denies it, enforcement stands in between without numbers. Measuring around the clock shows exactly where, when and how loud so you can act and prove it.

Hotspots, objectively

Nightlife, car meets, construction — measured in dB(A) instead of debated. The map shows where it’s really loud.

Day & night limits

Limits per zone switch automatically at 10 pm and 6 am — modeled on the TA Lärm, freely adjustable.

Alert on violation

Above the limit → alert with place, level and duration. Patrols go out targeted instead of on suspicion.

Evidence

“Too loud!” — “Not true!” — Now what?

Without measurement, every complaint stays an anecdote. Smart Noise delivers the night values per measuring point — hour by hour, night by night — and flags violations automatically.

The result: Friday and Saturday, 11 pm–2 am, clearly over the limit. That’s something you can act on — and the measure’s effect is re-measured with the same sensors.

  • LAeq/LAmax around the clock — per measuring point
  • Violations flagged automatically — with place, level, duration
  • Levels only, never audio — privacy without debate

Every value openly shows which sensor and time period it comes from.

From dispute to evidence
AnecdoteWord against wordSmart NoiseObjectively proven
How the evidence is madeLevels per point · limits per zone · violations flagged
The app at a glance

One app, the whole noise picture.

From the hotspot map through automatic limits and alerts to the 24h profile — all from the same sensors, no dashboards to build.

Hotspots at a glance.

Every measuring point live in dB(A) — the map instantly shows where it’s too loud and where everything stays within the limit.

dB(A) per pointHotspots instantly visibleResidential vs. mixed zone

10 pm: the limit switches itself.

Day and night limits per zone — modeled on the TA Lärm, switched automatically. Set once, done.

Limits per zoneAutomatic from 10 pmClose to TA Lärm

Violation? Alert.

Above the limit, the app fires — with place, level and duration. As a list, push or export for enforcement.

Place, level & durationPush & exportTargeted checks

Patterns instead of anecdotes.

24h profiles and weekly patterns show when it’s really loud — Friday and Saturday 11 pm–2 am, not “always”. The basis for every measure.

24h profileWeekly patternsRe-measure the effect

Levels only. Never audio.

The sensors measure sound levels — no audio is recorded. Conversations are physically impossible to reconstruct. Privacy without debate.

No audioNo recordingsGDPR without debate
One noise picture, three angles

See, prove, act.

The same night, read four ways: the hotspot map, the zone groups, the analytics behind them — and the configuration where the limits are set.

Smart Noise live map with a noise heatmap over Cologne and over-limit list
Live map — heatmap & levels per point
Smart Noise groups such as ring roads & squares and residential areas with average levels
Groups — zones with their own Ø level
Smart Noise analytics with night average, violations and weekly replay
Analytics — night values, violations, trend
Smart Noise configuration with adjustable day and night limits per zone
Configuration — day/night limits per zone
Built on evidence

Honestly measured, no microphone stream.

Smart Noise measures levels to standard — and never records audio, on principle.

LAeq & LAmax

The Milesight WS302 measures energy-equivalent continuous and peak levels in dB(A) — indoors and out, LoRaWAN battery-powered.

Solar mast kit

Mast, solar panel and mount — measuring points go where the noise is: square, street, parking deck.

Never audio

No sound is stored or transmitted. Numbers only — privacy by design.

3readings: LAeq, LAmax & history — around the clock
24/7measured — even at 2 am, when nobody is counting
5readings: LAeq, LAmax & history — around the clock
100%of violations documented with place, level and duration

Every value openly shows which sensor and time period it comes from.

Runs on the Urban Data Platform.

Every urbanOS app inherits the platform underneath it. You never buy an island.

Sovereign by default

GDPR-compliant, ISO-certified, hosted in Germany. Your city's data stays your city's data.

Live in days

Standard IoT sensors over LoRaWAN and existing networks. Deployment takes days, not months.

Grows with you

Add or remove apps as your city's needs change. The platform and your data stay in place.

Get started

Start with a Starter Kit.

A complete setup for the first hotspot — level sensors, mounting, app and support in one package. Configure the right scope in the urbanOS calculator.

Included in the package
  • Sound level sensors (LAeq/LAmax) incl. mounting
  • Solar mast kits for squares & streets
  • 1× Smart Noise app with map, limits & alerts
  • Support for the entire term
from €299/monthnet · with AI pattern detection €899 · scope in the urbanOS calculatorRequest Starter Kit

Click through it yourself.

The open demo runs on simulated levels: hotspot map, day/night limits, violations and 24h profiles. No account — it’s the same app our cities use.

Open live demo

Prefer a guided tour? Book a live session

Smart Noise, explained by your AI

Let the AI you trust walk you through Smart Noise and its concrete value for your municipality — tailored to your role and your city.

Opens your AI in a new tab with a prepared question. You can edit it before sending.