360° passive cue
A microphone ring listens in every direction at once — fully passive, no emissions, day or night, fog or glare. It detects and bears candidates the moment they make noise.
SENTIO — BY SIPSA LABS
Machines that hear, see, and act.
Sentio is SIP, hardened for defense — SIP is the on-device perceive → decide → act brain every Sipsa machine carries; Sentio is its first mission. The watcher node is Argus: a small passive sentry that listens in 360°, looks where it heard, and hands confirmed tracks to the systems you already run — no cloud in the loop.
FIRST MISSION
The drones that worry everyone are silent on radio.
A new class of small drone carries its control link over a fiber-optic thread instead of radio. It emits nothing — so the RF detectors and jammers most defenses rely on never see it. It is small, low, and fast enough to slip past cameras cued by nothing.
But propulsion is loud. A drone cannot mute its rotors. Passive acoustics catch the signature that signature-management hides everywhere else — and a camera, pointed by the sound, confirms it. That pairing is Sentio's first product: passive detection of RF-silent drones for the people protecting real sites.
HOW IT WORKS
Perceive. Confirm. Act.
One node, one loop, no operator babysitting. Each stage covers the failure mode of the one before it — sound cues in all directions at once, vision rejects what sound alone can't, and the result is an action, not a dashboard ping.
Look where it heard
A camera interrogates the cued bearing and confirms drone vs. not-drone — rejecting the mowers, generators, and gusts that fool any single sensor on its own.
Track out, hands off
Confirmed tracks publish in standard formats (TAK-compatible) to the C2 or alerting stack you already operate. Sentio cues and confirms — it is a detection layer, not a weapon.
THE SENTIO FAMILY
One platform. Three machines.
SIP is the brain — the same on-device runtime in everything we build. Its first mission, Sentio, hardens it into three machines: the watcher, the hunter, and the ghost.
Argus
The node of the first mission — a pole-top sentry that hears in every direction at once, looks where it heard, and publishes confirmed tracks, all on the node itself. Some eyes always open. IN DEVELOPMENT · NO PERFORMANCE CLAIMS BEFORE FIELD DATA
Shrike
The adaptive adversary we build so the watcher learns: a signature-faithful drone — bare props, sounds like the real thing — that flies realistic intrusion profiles, navigates to its waypoint, and learns to slip the watcher. No weapon — a sensing-and-flight adversary, by design. V0 PROTOTYPE
Whisper
Shrike leaned all the way into stealth — the quietest adversary we can build, setting the detection floor: how faint a threat Argus can still catch, measured by us first. SPECS WITHHELD — BY DESIGN
WHERE IT GOES
Defense first. Every unattended machine after — earned, not assumed.
The same node — ears, eyes, and an on-device brain — retrains for any environment where machines need senses and the cloud is too far away.
Defense & critical infrastructure
Counter-UAS detection for forces, bases, airports, stadiums, data centers, and the grid — the passive layer that catches what RF and imagery miss.
Agriculture
The watchful node for fields and herds: pests, intrusions, equipment health — sensed at the fence line, acted on locally.
Industry
Motors that report their own failing bearings. Lines that hear a jam before it cascades. Intelligence embedded in the machines themselves.
SENTIO ARGUS — THE WATCHER
This geometry is real.
PRINTED IN-LAB · LIVE 3D OF THE ACTUAL ENCLOSURE · INTERNALS REPRESENTATIVE
WHERE WE ACTUALLY ARE
Built in the open. Claimed only when verified.
Sipsa Labs publishes what it can prove — a habit we built in our compression-research era and kept. Here is Sentio's real, current state:
- RUNTIMELive on-node. Full pipeline — acoustic cue → camera confirm → decide → standard output — runs on the physical node: 4-mic array + camera on commodity edge compute, ~70 ms median full cycle [BENCH, measured on-device]. No cloud, no emissions.
- VALIDATIONLab-validated, honestly labeled. Held-out detection Pd ≈ 0.94 at ~1–2% false-alarm rate [HOLDOUT — lab, not fielded]; deployed model at 0/578 false alarms on real quiet ambient. Every number carries its provenance tag.
- HARDWAREv6 node printed & assembled in-lab. Compact, passive, weatherizable sensing package — PoE-powered, internals mounted, running 24/7 on the bench.
- NOT YETNo fielded deployments, no at-range performance claims. The controlled field campaign is in preparation — field numbers will be published with their methodology; that is the standard here.
EARLY PARTNERS
We want to build this with the people who'll field it.
Integrators, site operators, and program offices: if RF-silent drones — or machines that need senses — are your problem, we want the conversation now, while the design is still being shaped by real constraints.
founder@sipsalabs.com