The Stealth Sound Barrier is a unique system for providing protection for human’s speech. Not all listening devices can be detected by existing methods. Remotely controlled radio microphones, wired microphones, passive resonators, miniature voice recorders – practically all these devices cannot be detected by conventional methods. Even a modern cellular phone may contain a digital voice recorder; this means that any phone lying on the desktop could be used by an adversary to record a conversation or transmitting any acoustic information.

Bearing the above points in mind, it is extremely important to have a reliable device protecting private conversations not depending on their level of importance. The concept of The Stealth Sound Barrier is based on generating audio interference produced simultaneously with a human’s speech. The volume of this interference is higher than of a person’s voice; therefore neither a listening device nor a recorder is able to pick it up the actual human speech.

The generated audio interference cannot be cleared by any noise-clearance methods. At the same time the produced interference does not create any inconvenience to the participants of the negotiation wearing to the special headsets. The Stealth Sound Barrier headset allows users to hear each other with crystal quality.

The Stealth the Stealth Sound Barrier is employed the most advanced technology to help the TSCM professionals to against from new generation of bugs and surveillance devices.

It is the most advanced speech protection system which protects you against from listening and recording devices. It creates sound barrier interference which masks your speech and any sound to be extremely difficult or impossible to extract the original content from the scrambled sound.

It combines the features of our unique speech protection system, Druid-D06, and a professional electric white noise generator, DNG-2300, to provide the perfect protection of human speech to prevent eavesdropping activities and listening. The two main units work individually or together for total security.

The communication unit generates special scrambled audio interference accompanying with the human speech cannot be cleared by any noise-clearance methods and allows only the users with headsets or headphone and microphone through its communication ports communicate clearly. Even a participant of the conversation carry a recorder with him or a person near the participants can not pick up the actual conversation.

The white noise generation unit can be use as a standard white noise generator with transducers and Omni-speakers and can mix with the scrambled audio interference from communication unit prevent more security.

It can be installed in the audio system rack in the conference room or in any portable rack and with speakers for mobility. It can be customized to provide the perfect solution for any environment and purpose.

Features

• Professional system for protecting speech between up to 6 people (Standard).  – Can be added more users
• Protects against all known methods of listening, including all types of radio microphones, stethoscopes, voice recorders, passive resonators, wired microphones, etc.
• Absolutely harmless to your health – no microwave reflections or ultrahigh sound noise
• Compared to a white-noise generator, The Stealth Sound Barrier provides a much higher level of protection; Acoustical white noise does not jam digital voice recorders completely even at a high volume, and the users must bear the inconvenient white noise too.
• The system can be installed in any standard 19” Rack with the audio system in a conference room or in a Portable Rack for easy transference. – it can be customized for any purpose.
• Built in the wide band RF detector – 50 ~ 6,000 MHz for additional security.
• Powered by AC 110~220 V – Speech protection unit can work 2~4 hours with built-in rechargeable battery.
• The system can be used in any situation; it is especially valuable when conducting highly important negotiations in an unknown environment;
• Can be used the digital noise generator function only to prevent  listening though devices that cannot be detected by conventional countermeasures and installed around the perimeter of a room – wired wall microphones, contact microphones, AC outlet transmitters and window systems based on the reflection of laser/infrared/microwave beams. It is an excellent addition to high level countermeasures.
• Can be customized the total acoustic barrier for any environment and purpose.