NEWNow piloting in Bangkok

The operating
system for
awareness.

Hearo listens for the sounds that matter — fire alarms, glass, sirens, human distress — and translates them into vibration, light, and alerts for Deaf and Hard-of-Hearing users.

Partner with Hearo
DETECTION LATENCY
<1s
SOUND CATEGORIES
8 live
PILOT TESTERS
10+
hearo.app/listen
MONITORING · 08:41 LOCAL
MODEL v4.2.1 · 8 CLASSES
FIRE_ALARM · 0.96
TIMEEVENTCONFIDENCEACTION
08:41:02fire_alarm · kitchen0.96ALERTED
08:38:14doorbell · front0.97NOTIFIED
08:22:07phone_ring · living0.91NOTIFIED
07:54:49ambient · baselineLOGGED
9:41●●●●100%
Hearo
LIVE
CRITICAL · DETECTED NOW
Fire alarm
Detected in the kitchen · 92% confidence
I'm safe
Alert contacts
ACTIVE CHANNELS
Vibration
Visual
Watch
Contacts
SUPPORTED BY
Microsoft
UNDP
U.S. Embassy
TUSAA
Accessibility TH
WHAT HEARO DOES

One pipeline.
Every channel of awareness.

Real-time listening

On-device microphone monitoring with privacy-preserving audio analysis. Never stores audio.

ON-DEVICE

Intelligent detection

Fine-tuned sound classifier trained on emergency acoustics. Filters noise that mimics alarms.

ML v4.2

Haptic patterns

Distinct tactile signatures per category — fire feels different from a doorbell.

Visual strobes

Screen-filling color pulses and flashlight strobes at high contrast.

Network alerts

Optional loop-in to family, caregivers, neighbors — your safety net.

THE PIPELINE

From sound to safety in under a second.

STEP 01
audio.capture()

Listen

Continuous microphone stream, sampled at 16 kHz.

SAMPLE16kHz
STEP 02
model.classify()

Detect

Multi-class classifier over 8 critical sound types.

LATENCY280ms
STEP 03
channels.emit()

Alert

Vibration, flash, and screen fire in parallel.

CHANNELS4 live
STEP 04
network.notify()

Connect

Optional push to trusted contacts and care network.

OPTIONALopt-in
ALERT CHANNELS

An alert you cannot miss.
No matter the room.

Because Deaf/HoH users live in many environments, a single alert channel is not enough. Hearo fires redundantly — so an alert reaches you through whichever sense is available.

Distinct haptic pattern per sound category
Full-screen color pulse + flashlight strobe
Persistent push notifications on phone and watch
Optional alerts to trusted contacts & caregivers
9:41●●●●100%
Hearo
HOME · 1 MIC
Listening
AI is monitoring · 8 sound types
AMBIENT34 dB · QUIET
LISTENING
9:41●●●●100%
Hearo
LIVE
CRITICAL · DETECTED NOW
Fire alarm
Detected in the kitchen · 92% confidence
I'm safe
Alert contacts
ACTIVE CHANNELS
Vibration
Visual
Watch
Contacts
ALERT
9:41●●●●100%
Hearo
Today
Doorbell
Front door · Just now
Phone ringing
Living room · 22 min ago
Smoke detector
Kitchen · 2 hrs ago
Baby crying
Nursery · Yesterday
HISTORY
TECHNICAL OVERVIEW

Built on Azure. Tuned on Thai environments.

MODEL
ArchitectureCNN + attention
Classes8 (expanding)
Training dataPilot-labeled + public
F1 (held-out)0.93
INFRASTRUCTURE
HostingAzure ML SE Asia
Edge optionIoT Edge device
StorageCosmos DB + Blob
TelemetryOpt-in only
PRIVACY
Audio retentionNot stored
On-device inferencePreferred
Network alertsEnd-to-end
User controlPer-channel opt-in
PILOT PROGRAM

Ten testers in Bangkok. Real environments.

We are running Hearo with 10+ Deaf and Hard-of-Hearing participants across the Bangkok Metropolitan Area — in homes, offices, and everyday environments. Each session feeds our model and our product.

10+
Active pilot testers
8
Sound categories live
v4
Model iteration
Apply to test
MADE BY

A two-person team with a shared brief: safety, inclusive by default.

Portrait of Poy
FOUNDER · PRODUCT LEAD

Poy

Leads product vision, strategy, and UX — working directly with Deaf/HoH communities to keep solutions practical. Advocate for GEDSI.

Portrait of Roong
CO-FOUNDER · TECHNICAL LEAD

Roong

Leads AI and hardware. AI & Computer Engineering graduate with a focus on accessibility and human-centered systems.

🏅
RECOGNITION
3rd Place — Microsoft Accessibility Hackathon
Empowering Persons with Disabilities through AI Innovation · UNDP × Microsoft Thailand
2025

Safety accessible
to everyone.

Partner with us, test with us, or support the mission. Every connection makes this real.

Partner with HearoJoin the pilot
contact@hearo.app