A simulated attack at Václav Havel Airport demonstrated a 97% faster response thanks to JALUD’s SED.
Quick Facts:
Location: Václav Havel Airport Prague
Scenario: Active shooter
Findings: Response time reduced from 175 seconds to 5 seconds
Technology: Sound Event Detector (SED) by JALUD
Partners: Police of the Czech Republic, Axis Communications, VSB – Technical University of Ostrava
Context: Seconds That Decide Lives
In critical situations, every second matters. Yet most incidents are reported with delay — people react more slowly under pressure, and sometimes not at all.
A 2025 expert study tested what happens when intelligent acoustic detectors from JALUD are added to the equation.
What We Tested
As part of the STČ-14/IZS AMOK exercise at Prague Airport, a series of attack scenarios were simulated:
- verbal aggression,
forced entry into the facility,
gunfire and hostage-taking.
In all scenarios, the JALUD SED system was deployed — ready to detect screams, gunshots, or any other critical sound event.
Results That Cannot Be Ignored
| Scenario | Traditional Response | Response via SED | Difference |
|---|---|---|---|
| Scenario 2 – Scream | 30 s | 5 s | 25 s |
| Scenario 3 – Gunshot | 6 min 50 s | 5 s | 6 min 45 s |
| Scenario 4 – Gunshot | 1 min 27 s | 5 s | 1 min 22 s |
The SED system repeatedly provided the first alert of the incident — automatically and without reliance on human reaction.
The results were statistically significant (p < 0.01) and demonstrated:
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consistent performance without delay,
zero error rate during the experiment,
a substantial reduction in the time required for security forces to intervene.
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Why It Matters
With most traditional methods (emergency calls, panic buttons, witnesses), there is a risk of human failure — delays, panic, or the bystander effect. JALUD’s automated acoustic detectors eliminate these variables.
Early information = faster intervention = lives saved.
Technology Background
SED – Sound Event Detector (JALUD Embedded s.r.o.)
Detection of gunshots, screams, and glass breaking with >95% accuracy
Integration with Axis cameras (P1387)
Deployment on mobile tripods with connection to the airport’s central security system
Limitations and Outlook
The only scenario in which the SED did not succeed involved an incident without any acoustic signature — highlighting the need for a multi-sensor approach (e.g., combining audio and video detection).
The study also points to the need for further calibration in high-noise environments and recommends the use of more advanced AI models (e.g., transformer-based architectures) to enhance performance.
Conclusion
This simulation confirmed that JALUD’s SED can fundamentally change the way security forces respond to threats.
Whether in schools, airports, railway stations, or shopping centers — anywhere response time matters, this technology has a clear role to play.
A few seconds may not seem like much. In a crisis, they can define the outcome.
📎You can read the full study here (PDF).
About JALUD Embedded
We invite companies, investors, and forward-thinking partners to join us in transforming the future of monitoring and public safety. Together, we can unlock the untapped potential of existing infrastructure, prevent incidents, and build safer communities for everyone.
Let’s create a safer future — together.
Contact us:Email: sales [at] jalud-embedded.comPhone: +420 910 128 626 (free of charge))
