World's First V2X Acoustic Ecosystem

Hear
the Un-
seen.

SirenSense detects, localizes, and alerts you to approaching emergency vehicles before you can even see them — through edge AI, precision microphones, and V2X radio telemetry.

Explore the Ecosystem ▶  Watch the film
NW
Direction
340m
Distance
CRIT
Status
2km
V2X detection range via LoRa
4×
MEMS microphone array
0ms
Cloud dependency — 100% edge AI
3
Devices. One connected network.
The Challenge

Sound has
a blind spot.

01
Acoustic Isolation
Modern vehicles seal out the world
High-density insulation, active noise cancellation, and premium audio systems create an acoustic bubble. What once served as a safety cue — the wail of a siren — is now simply gone.
02
Urban Physics
Buildings create acoustic shadows
Sound cannot bend around corners. At a busy city intersection, a building between you and an oncoming ambulance acts as a perfect acoustic shield. The siren simply does not reach you in time.
03
The Consequence
Lives lost. Response times degraded.
Every second of delayed emergency response compounds outcomes. SirenSense bridges the gap — giving drivers the warning they can no longer rely on their ears to provide, and giving emergency crews the clear path they need.
Hardware Lineup

Three devices.
One network.

SirenSense v2.1 ◉ ACTIVE
⚠ AMBULANCE NW — 340m
IP67 Aerodynamic Roof Array
Product 01 of 03
SirenSense Box
A dual-node architecture designed for zero latency and absolute precision. Fits any passenger vehicle. No subscription. No cloud.
Aerodynamic Roof Array
Four I2S MEMS INMP441 microphones housed in an IP67-rated teardrop shell. Sound enters freely while rain and high-speed wind are completely blocked.
Smart Dashboard Console
Angled 2.8-inch TFT directional radar with LED illumination and asynchronous audio warnings via a dedicated 3W speaker.
Black Box GPS Logger
BN-880 GPS + MicroSD logs the UTC time, latitude, and longitude of every event — enabling urban heatmapping for city planners.
Multimodal Alert Stack
Visual radar vectors, LED illumination, and audio warnings fire simultaneously for maximum situational awareness at any speed.
🚑
LoRa 433MHz
Broadcasting emergency status packet
Product 02 of 03
SirenTransponder
Preemptive V2X telemetry for emergency vehicles. Alerts approaching drivers before sound can physically travel to them.
Acoustic Shadow Mitigation
Encrypted emergency packets via 433MHz LoRa reach vehicles up to 2km away — bypassing every building that stands in the way.
Smart ALOHA Network
Randomized jitter prevents packet collisions when multiple ambulances operate in the same sector simultaneously.
Sensor Fusion Alerts
LoRa triggers an "Approaching" early warning, upgraded to a "Critical Alert" once acoustic localization confirms the precise direction.
SirenClip
Haptic alert active
Product 03 of 03
SirenClip
Road safety is a human right. Compact wearable siren detection for the visually impaired, hearing impaired, and all pedestrians.
Tactile Translation
TinyML detects sirens and translates acoustic pressure into directional haptic feedback via a 10mm flat coin vibration motor.
Escalating Urgency
Vibration frequency increases as siren intensity rises — warning the pedestrian not to enter the roadway with growing insistence.
12+ Hour Battery Life
XIAO ESP32S3 with deep sleep cycles — record, infer, sleep — sustained by a compact 400mAh LiPo. Always-on, all day.
Under the Hood

Intelligence that
runs offline.

Edge AI — CNN
100% Offline Neural Processing
SirenSense never touches the cloud. The ESP32-S3 neural DSP converts audio into a Mel-Filterbank Energy spectrogram, isolating the critical 600Hz–1500Hz siren band. A Convolutional Neural Network classifies sound locally — rejecting traffic noise, voices, and wind in real time with no latency penalty.
TDOA Algorithm
Mathematical Direction-Finding
Once a siren is classified, the Time Difference of Arrival algorithm measures microscopic phase delays across the four-microphone array. These nanosecond-scale differences resolve the exact angle of incidence — translating raw acoustic data into a precise directional vector displayed in real time.
SirenClip

Safety for
every human.

1 in 5 people live with a disability that makes standard auditory warnings inaccessible. The SirenClip translates sound into sensation — giving the visually and hearing impaired the same split-second advantage as any other road user.

12+
Hours battery life
2km
V2X range
4×
Mic array
👁️
Visual Impairment
Directional haptic pulses communicate which side the threat approaches from — no sight required.
👂
Hearing Impairment
Siren detection is handled entirely by AI. No auditory perception required. The device becomes the ear.
🧠
Cognitive Support
Escalating vibration intensity communicates urgency intuitively — no training or memorization required.
🚶
Always-On, Everywhere
Clip to any jacket or bag. Lightweight, weatherproof, and active wherever you go — for the full day.