The TechnologyBehind Change
How OpenNoiseNet transforms forgotten smartphones into privacy-preserving noise sensors that build evidence for quieter communities
From Problem to Solution
Seven technical innovations that transform community frustration into measurable change
The Silent Guardian
“Old phone → Community sensor”
Transform dormant smartphones into active environmental sensors. Every drawer has a potential guardian waiting to serve your community.
Hardware transformation and repurposing
The Privacy Shield
“Privacy-first: No audio stored”
Edge computing ensures your privacy. Local AI processes sound without storing raw audio - only anonymous patterns reach our servers.
Privacy-preserving architecture
The Pattern Hunter
“Edge AI: Classify locally”
On-device machine learning categorizes sounds into meaningful events - garbage trucks, sirens, construction - without compromising privacy.
On-device machine learning
The Time Detective
“Pattern detection: Hour, day, week”
Reveal hidden temporal patterns in noise pollution. See when your neighborhood is quiet, when it's disturbed, and what causes the disruption.
Temporal analysis and pattern recognition
The Network Effect
“Network effect: Street-level coverage”
Your sensor joins a mesh network of community devices, creating comprehensive coverage that reveals neighborhood-wide patterns.
Distributed sensing and data aggregation
The Evidence Builder
“Evidence dashboard: Data for change”
Transform community frustration into policy evidence. Generate reports, visualizations, and advocacy tools that local governments can't ignore.
Analytics, reporting, and advocacy tools
The Change Catalyst
“Impact: Quieter neighborhoods”
Track measurable community improvements. See how data-driven advocacy leads to policy changes and genuinely quieter neighborhoods.
Impact visualization and success metrics
Open Source Architecture
Built with transparency, powered by community contribution
Privacy by Design
No raw audio ever leaves your device. Our edge computing architecture processes sound locally, transmitting only anonymous acoustic events and statistical summaries.
Community Powered
Built by volunteers who believe everyone deserves peaceful neighborhoods and restful nights. Join thousands contributing to quieter cities worldwide.
Build the Future ofNoise Monitoring
One old phone at a time, we're building the infrastructure for quieter cities. Every sensor matters. Every measurement counts. Every voice makes a difference.
Ready to Make an Impact?
Join the quiet revolution. Transform community frustration into policy change through evidence-based advocacy.