LRAD provides wide-area communication through clear, attention commanding alert tones and live or recorded voice warnings.

Advanced Technology

Optimized to the primary human hearing range of 1-5 kHz, LRAD's advanced driver and wave guide technology broadcasts voice messages with 360° uniform area coverage. By maintaining a smooth frequency response with an intensity variation of less than 5dB, LRAD has overcome the limitations of other mass notification systems by preventing audio fading and producing clear, unambiguous communication across all broadcast frequencies.

LRAD Command & Control software remotely activates and controls individual speakers or defined speaker groups, streams live or prerecorded voice messages, and remotely monitors speaker health and status through several communication options including, TCP/IP, fiber, Wi-Fi, digital or analog radio, Ethernet, hard wire or satellite.

Superior Voice Intelligibility

Based on Federal Emergency Management Agency (FEMA) and U.S. Military United Facilities Criteria (UFC) guidelines, the minimum standard for high-powered speaker array (HPSA) mass notification systems is a 0.5 speech transmission index (STI) measurement.

LRAD ONE VOICE systems feature the highest STI rating in the mass notification industry at 0.95, substantially exceeding all FEMA and
UFC voice intelligibility requirements.

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When life threatening incidents occur, individual and community safety is the highest priority. All individuals must be alerted and safety protocols quickly implemented and followed.

Standard mass notification systems are limited in loudness, range and vocal clarity. LRAD systems use advanced mass notification technology to broadcast warning tones and voice messages with exceptional intelligibility from close range out to 5,3 km2.

LRAD systems ensure warnings and lifesaving notifications are simultaneously heard and clearly understood over wind and background noise to provide a superior communications capability for crisis situations.

LRAD SYSTEMS —

• Lightweight, low profile, robust construction withstands up to
  200 mph winds
• Greater efficiency and reduced power consumption
• TCP/IP based, combines warning siren with clear & unambiguous voice communication
• Flexible broadcast area coverage
• Standard 24V DC with AC or Solar charging
• Capable of running several hours continuously on two standard 12V batteries
• Continuous run option on 90-260VAC 50/60Hz
• Flexible solutions that easily integrate and connect to existing systems
• LRAD acoustic solutions are widely recognized for their reliability, affordability, effectiveness and safety.
  
  

LRAD mass notification  |  watch

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advanced Mass Notification Solutions

Before LRAD entered the emergency warning mass notification market, highly intelligible voice communication was not available. Standard mass notification installations sound sirens to warn, but nearly all are incapable of broadcasting highly intelligible voice messages containing critical information about the severity, location and expected duration of an emergency, and potentially lifesaving directions. Emails, automated phone calls, text messages, social media and other emergency notification measures are only effective if directories are continually updated

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LRAD ONE VOICE Mass Notification

Advanced LRAD ONE VOICE mass notification systems broadcast warning sirens and exceptionally intelligible voice messages to protect and save lives. LRAD life safety systems communicate critical information to populations not receiving automated phone calls and other emergency notification measures.  LRAD ONE VOICE systems ensure emergency warnings and general announcements are clearly heard and understood throughout coverage areas, which reach over 5,3 km2 from a single installation.

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​LRAD 360XT – PORTABLE MASS NOTIFICATION AND PUBLIC ADDRESSThe LRAD 360X Mobile Mass Notification System (MMNS) delivers LRAD’s world renowned, highly intelligible voice and warning tone broadcasts with perfect 360° coverage on wheels.The LRAD MMNS is integrated with a fully self-contained, ruggedized trailer and features lockable electronics and equipment enclosures containing the amplifier modules and battery pneumatic systems.
The LRAD MMNS battery bank can be charged using the built-in AC powered battery charger or optional solar panel.With a mast height of 11 meters, the standard configuration of a dual stack 360X emitter provides an 850 meter radius of clear communication coverage. Each system can be customized with different color schemes.FEATURES• Ruggedized, space saving• Amplifier modules• Standard recording microphone and
MP3 player for local playback of live voice and pre-recorded messages and sounds• Battery powered with low power consumption for extended operation• Fully operational in extreme temperatures, driving rain, high winds, salt spray and solar radiation

Self-contained or easily integrated with existing fire alarm, and security systems, LRAD ONE VOICE provides the industry's most advanced mass notification solutions.

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applications

► Mass Notification

Revolutionary LRAD ONE VOICE systems are advanced mass notification solutions that broadcast warning sirens and exceptionally intelligible voice messages to protect and save lives.

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► SEVERE WEATHER

LRAD ONE VOICE systems warn and communicate emergency weather information to populations not receiving automated phone calls, emails, text messages, and other emergency notification measures by broadcasting attention-commanding warning sirens and extraordinarily clear voice messages up to 5,3 km2 from a single installation.

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► reliable emergency communication

When major disasters strike and existing infrastructure is disrupted and compromised, portable and self-contained LRAD ONE VOICE communication systems are an essential tool for maintaining civil order, conducting search and rescue operations, and providing relief distribution — a must-have capability for emergency responders.

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► MUNICIPAL AND COUNTY EMERGENCY WARNING

Standard community emergency warning systems sound sirens to alert of approaching danger, but are incapable of clear voice broadcasts announcing the severity, location and duration of the situation. LRAD ONE VOICE systems combine warning sirens with highly intelligible broadcasts to provide information and instructions during preparedness exercises and emergencies.

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► OUTDOOR P.A. AND EMERGENCY NOTIFICATION

Enhancing public safety during large events and emergency situations is a critical priority for authorities tasked with keeping large outdoor events secure and peaceful. LRAD ONE VOICE mass notification systems broadcast highly intelligible voice messages and provide a superior capability to communicate live or recorded messages to large crowds in any language.

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► CAMPUS P.A. AND EMERGENCY NOTIFICATION

Severe weather, active shooter incidents, bomb threats, hazardous material events and other crisis situations highlight the need for improved campus communication and emergency notification systems. LRAD ONE VOICE systems warn and communicate critical information to students, staff and faculty not receiving automated phone calls, emails, text messages, social media and other emergency notification measures.

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► HUMANITARIAN RESPONSE AND RELIEF

When major disasters strike, existing infrastructure is disrupted and compromised, power and communication systems may fail, rural areas can become isolated and urban streets impassible and dangerous. Reliable communication with the public is a must-have capability for first responders. Portable LRAD systems go anywhere communication is needed.

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​City of muskogee evaluates lrad mass notification  |  WATCH

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LRAD Mass Notification Systems

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Portable, mobile or permanent, indoor/outdoor installations for omnidirectional or targeted voice broadcasts, LRAD ONE VOICE systems fit all your Mass Notification applications.

 

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Brochures, White Papers, and Links

BROCHURE: Mass Notification

CASE STUDY: Art in the Square – Southlake, TX

CASE STUDY: Ando, Japan LRAD ONE VOICE Installation

BROCHURE: Campus Safety

BROCHURE: Communication During Civil Emergencies

WHITE PAPER: Communicating in Times of Crisis

 

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About LRAD Corporation

THE GLOBAL LEADER in Long Range Acoustic Devices
and Advanced Mass Notification Systems

LRAD Corporation introduced its first directed sound technology in 1996 and began engineering acoustic solutions for government and commercial markets. In response to the October 2000 attack on the USS Cole, the Company’s engineering team developed the revolutionary Long Range Acoustic Device and created a new industry.

In 2013, the Company launched its new line of ONE VOICE omnidirectional public address/mass notification systems featuring LRAD’s unparalleled area coverage, vocal clarity and reliability. LRAD systems are in service in more than 70 countries around the world in diverse applications including mass notification and public address, fixed and mobile defense deployments, maritime security, critical infrastructure and perimeter security, commercial security, border and port security, law enforcement and emergency responder communications, asset protection, and wildlife control and preservation.

LRAD Corporation is using long-range communication to safely hail and warn, inform and direct, prevent misunderstandings, determine intent, establish large safety zones, resolve uncertain situations, and save lives on both sides of its proprietary Long Range Acoustic Device.

LRAD HEADQUARTERS AND MANUFACTURING FACILITY

SAN DIEGO, CALIFORNIA USA

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