This document discusses sound detection technology to enhance video surveillance systems. It describes how adding sound detection sensors called "ears" to cameras allows the system to detect events outside the camera's field of view. The system is able to distinguish abnormal sounds from background noise by analyzing patterns in the soundscape. It then alerts operators and redirects cameras to focus on the source of unexpected sounds. The company Sensivic is highlighted as providing different types of sound detectors that can be used both indoors and outdoors for applications like detecting gunshots, glass breaking, vehicle accidents and more.

1. COPYRIGHT SENSIVICTM 2013-2017
Without ears your cameras are blind
Urban Soundscape:
the Intelligent Ears

2. COPYRIGHT SENSIVICTM 2013-2017
WHY SOUND DETECTION
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The images of the surveillance camera of the city of Nice
installed near the jewelry do not confirm this statement.
During the robbery, the camera was not oriented towards
the jewelry store and did not film the scene.
(Nice - 09/2013)
Video surveillance was active, but at the time of the incident, it was not
directed at the scene of the crime.
(Albertville - 01/2014)
... lack of luck, the surveillance camera was not oriented
towards this portion of road
(Montpellier - 07/2014)

3. COPYRIGHT SENSIVICTM 2013-2017
A CAMERA ONLY SEES
WHAT IT LOOKS AT
• How to attract the
attention of the video
surveillance system?
• How can the system
respond to an out of
scope camera
event?
3
?

4. COPYRIGHT SENSIVICTM 2013-2017
AN ADDITIONAL SENSE
There is no sound out of scope
Isn't it time to put ears to the cameras?
4

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In town, or in public places there is a lot of noise,
and the noise changes all the time ... And that's
normal!
In naturally noisy contexts
• What are the noises that worry us?
• How to detect abnormal sound?

6. The SENSIVIC detection algorithm
is based on the concept of
SOUNDSCAPE
Keynote sound + Marker sound + Signal
6COPYRIGHT SENSIVICTM 2013-2016
Keynote
sound
Marker
sounds
Signal
• Keynote sound : The sounds produced by the surrounding activity that our brain quickly
learns to eliminate. Nothing surprises us, we get used to it. Sounds of natural environment
little aggressive (river, surf of the sea, wind ...)
• Marker sounds Are related to the activity of a moment and a place, they refer to a
community: sounds of ambient artefact (highways, factories, construction sites, airports,
hubbub of a crowd, schools, stadiums …)
• A Signal is an abrupt change in the ambient sound environment. It is precisely this sudden
change that surprises us and attracts our attention.

7. COPYRIGHT SENSIVICTM 2013-2017
Signal
!
Surprise effect
!
Visual verification
7
Our detection system isolates:
• the Signal
➡ from Keynote Sound
➡ from Marker Sounds

8. COPYRIGHT SENSIVICTM 2013-2017
SENSIVIC :
A self-monitoring system
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ARTIFICIAL
INTELLIGENCE
Works
Summer
Winter
events
Adapts
automatically to
the context
Crowd
Delete the
Keynote
sound
Get used to
the Markers

9. COPYRIGHT SENSIVICTM 2013-2017
The Detectors
1st type :
• SOUND-SCANNER : Detects and locates shocks
2nd type :
• SOKO : Shock Detection
• SPARO : Gun shot Detection
• LASCO : Sounds Detection (different categories)
• MUTY : Detection of incivilities to panic cries
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10. COPYRIGHT SENSIVICTM 2013-2017
1st type of detector :
Detects and locates Shocks
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DETECTION
SYSTEM
ACOUSTIC
ANTENNA with
4 MICROPHONES
Identifies the
"shock" type
sound signals
Determines the
location of the
source
ARTIFICIAL
INTELLIGENCE
Shocks : Sound signal under 1s

11. COPYRIGHT SENSIVICTM 2013-2016
The directional detector: the SOUND-
SCANNER
• 13 Detection directions = 13 notifications
HTTP, SNMP, TCP, UDP
• Noise level: + 1 notification
• Connects to IP network, PoE
• IP65
• Range from 2 to 40 meters
• Transmits alarm notifications
• Suitable for large open spaces:
• Avenues, boulevards, crossroads
• Outdoor parkings
• Public spaces
• Outdoor storage
• etc…
11

12. COPYRIGHT SENSIVICTM 2013-2017
SOUND-SCANNER by SENSIVIC
enhances dramatically cameras efficiency
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A shot has been
fired.
Is it looking in the
right direction?
With SENSIVIC
• Presentation of the right
image at the right time
• Transmission of alarm to
th Supervision Center
A car accident has
just occurred.
Does the Supervision
Center see the
image of the camera
concerned?
With SENSIVIC
• Draws attention to the
right camera
• Enhances motion
detection

13. COPYRIGHT SENSIVICTM 2013-2016
SOUND-SCANNER :
What it detects
ANY TIME
Detonations
Gun shots
Explosions
etc.
Glass breaking
Shopping window
Bus stop
etc.
Vehicle related shocks
Accidents
Ram-raid
etc.
13
DE PLUS,
EN ENVIRONNEMENT CALME
(LA NUIT, DANS UN CIMETIÈRE…)
Surprising sounds
Clapping door at night
etc.
Metal or wood shocks
Grids
Barriers
Doors
Non-exhaustive lists

14. COPYRIGHT SENSIVICTM 2013-2017
2nd type: omnidirectional detectors
Detect without locating
Shocks and Sounds
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DETECTION
SYSTEM
Identifies and
detects sound
signals
ARTIFICIAL
INTELLIGENCE
SOUND : Sound signal over 1 second
SHOCK : Sound signal under 1 second

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Omnidirectional Detectors
Detectors Type Examples
Indoor
Version
Outdoor
Version
SOKO
Shocks
(shock wave)
Detonations
Glass breaking
Accidents etc…
Reception Hallos
Indoor car parks
Supermarkets
Corridors, etc…
Alleys, plots
Amusement
parks
etc.
SPARO Gun shots 22LR and more
Public spaces
Reception Halls
Convention Centers…
(SOUND-
SCANNER
in the appropriate
profile)
LASCO
3 families of
Sounds
Motor driven tools (burglary)
Sirens
Incivilities
Offices,
Premises subject to
attempted burglary
Outdoor
access
MUTY
Sounds in
the human
voice range
Incivilities
Panic cries
Reception desks
Reception halls
Banking self-service
etc…
Outdoor
version non
available

16. COPYRIGHT SENSIVICTM 2013-2017
www.sensivic.com
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INSTALLATIONS CARRIED OUT (FRANCE, SWITZERLAND, BELGIUM)
Auribeau (06)
Pégomas (06)
Installations privées en Suisse
Le Broc (06)
Saint Marc Jaumegarde (13)
Ramatuelle (83)
La Colle sur Loup (06)
Carros (06)
Valbonne (06)
Châteauneuf de Grasse (06)
Sennecey le Grand, centre médicalisé (71)
Liège – Belgique (groupe Inytium)
Ensuès la Redonne (13)
Eyragues (13)
Eyguières (13)
Rognac (13)
Marseille – Parking Bourse (13)
Menton (06)
Meyrargues (13)
Peyrolles en Provence (13)
Roquebrune Cap Martin (06)
PROJECTS IN PROGRESS
Reims (51)
Saint Cyprien (66)
Montpellier (34)
Yvelines (78): schools, administration…
Serris (77)
St Laurent du Var (06)
+ autres…
CONFIDENTIAL INSTALLATIONS IN THE SERVICE SECTOR - FRANCE AND SWITZERLAND