Nothing from your microphone leaves the phone until an acoustic fingerprint matches an impulse signature. Then nearby phones either confirm it — or don't. Below is the whole pipeline, in the order it runs.
Network overview
Every phone becomes a sensor. Triangulated, classified, and pushed to Network Central in seconds.
The pipeline, in order.
Each card below is the real run-time path: an on-device detector, an acoustic classifier, a peer-corroboration step, and a sealed record. Animations play once on entry.
step 0101
Listen
An on-device decibel + spectral analyzer watches the microphone in the background, looking for the impulse signature of a firearm discharge — not loud noises in general.
step 0202
Fingerprint
9mm5.5612GA
Matching events are fingerprinted against a library of acoustic profiles. Where the profile permits, Roundsift estimates a likely weapon family — 9mm, intermediate rifle, 12-gauge, .45.
step 0303
Corroborate
3 / 4 confirm · 4.2s span
When several phones on the same block register a matching impulse within seconds, their GPS + timestamps triangulate the source, and the event is upgraded to confirmed.
step 0404
Record
sealed
time · place · what was heard
Every event — confirmed or partial — becomes a sealed, verifiable record: time, place, what was heard, which phones heard it, and what they agree on. Yours to use, on request, for 911, claims, or testimony.
Performance may vary by device, environment, network conditions and participating-device density.
Get on the network
The network is its coverage.
Pilots are rolling out in seven metros this spring. Request an invite and we'll send a beta build and an instrument-test plan for your environment.
