SonicSense®

IoT acoustic sensor solution

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sonic sense

IoT acoustic sensor solution

Listen, detect, alert

SonicSense^® is a standalone IoT acoustic sensor. Wireless and self-powered, it is dedicated to monitoring acoustic phenomena. It analyses sound in real time, directly within the sensor, with no server-side processing.

Its algorithm extracts targeted indicators from specific frequency bands to recognise an acoustic signature (squeal, friction, impact, leak), even in noisy environments.

First deployed in the railway sector, it can be reconfigured remotely for whichever phenomenon you need to monitor.

Who is it for?

Network operators Maintenance & reliability HSE & environment Engineering & R&D teams

Download the product sheet

4+ yearsbattery lifeWirelessradio transmission to a web portalIP66rugged, waterproof housing, 160 gReal timeon-board analysis, no server

Beyond rail

One sensor, many configurations

For each application, we characterise the acoustic signature of the target phenomenon, then configure the embedded algorithm accordingly. The sensor itself stays the same.

Railway Deployed

Curve squeal and rail defects

Event detection and time-stamping, with alerts that can trigger corrective actions.

See the case study →

Industry

Production line malfunctions

Identification of friction, impacts or leaks on critical equipment.

Energy

Wind turbines and compressed air

Inspection of wind turbine blades in operation. Compressed air leak detection.

Environment

Noise nuisance

Monitoring of one-off or recurring noise in urban or industrial settings, with alerts based on configured thresholds.

Your application

Your phenomenon isn’t listed?

If it has an acoustic signature, SonicSense^® can most likely detect it.

Let’s talk

Principle

How does SonicSense^® work?

Listen & analyse

The sensor analyses sound in real time and recognises the target signature.

Radio transmission

LoRaWAN, Wi-Fi, BLE or NB-IoT, depending on the site.

Web portal

Display and history of detected events.

Alert

Sent to the control PLC and supervision system.

sonic sense fonctionnemeent

Key features

Everything you need, built into an IoT acoustic sensor

✓Real-time frequency analysis

✓Recognition of targeted signatures by frequency band

✓Automatic wake-up when an acoustic threshold is exceeded

✓Scheduled acquisitions, or continuous with an external power supply

✓Remote algorithm configuration

✓Measurement display on a web portal

✓Alert reporting to a PLC or supervision system

SonicSense web portal displaying acoustic detections

Specifications

Acoustic sensor
Type	Digital omnidirectional I²S MEMS
Frequency response	60 Hz – 15 kHz
Typical sensitivity	-26 dBFS (±3 dB)
Real-time analysis	✓ On-board, no server
Signature detection	Squeal, defects, specific anomalies

Processor & processing
Microcontroller	Dual-core
Computing power	Local real-time analysis
Algorithm	Remotely configurable, adjustable for each use case
Ambient noise	Smart filtering, detection in noisy environments

Radio transmission
LoRaWAN	1.0.2 (IN865, EU868, AU915, US915, KR920, RU864, AS923-1/2/3/4)
Wi-Fi	802.11 b/g/n 2.4 GHz
BLE	5.0
NB-IoT	Optional (additional daughter board)
Radio wake-up	When an acoustic threshold is exceeded

Power & battery life
Battery	Li-SOCl₂ primary cell
Battery life	4 years minimum (depending on transmission mode)
External power supply	5–24 V DC, optional
Acquisition mode	Scheduled or continuous (with external power)

Housing & mechanics
Material	Polycarbonate
Weight	160 g
Dimensions	100 × 100 × 57 mm (excluding external antenna)
Ingress protection	IP66
Antenna	External

Environment
Operating temp.	-25 °C to +85 °C
Storage temp.	0 °C to +65 °C
Ruggedness	✓ Ideal for hard-to-reach areas

Interfaces & accessories
Remote sensor interface	I²C on external connector
Remote sensor power	3.3 V on connector
Mounting plate	✓ Included
Cable ties	✓ Included
Magnets	✓ Included (magnetic mounting)

Ecosystem integration
SIMon-e® platform	✓ Integrated, full visualisation
Remote configuration	✓ Cable-free deployment
Operational autonomy	✓ No special infrastructure required

Why choose SonicSense^®?

✓No cables: quick installation, even in hard-to-reach areas

✓Over 4 years of battery life

✓Compact, waterproof and rugged

✓On-board processing: no audio stream to store server-side

✓One sensor for very different applications

Less manual monitoring.
More reliable detection.

Our solutions in the field

For an urban transport operator, Vibratec characterised the tram squeal signature, configured the sensor, then validated detection on site under real operating conditions.