NOISEBATH® technology is a patented active acoustic masking system which has two major elements– the masking source material and the acoustic playback system and can protect voices from eavesdropping via technical measures or simply overhearing. Attempts at masking acoustics with white or pink noise are easily defeated.
Threats come from hidden and planted microphones; remotely activated mics on desk phones, cell phones or voice controlled systems; optical microphones with no emissions; remote lasers and room audio conducted outside.
NOISEBATH® is compatible with secure telephones. The masking sounds have negligible impact on the remote secure phone. Typically, there is up to a 25db reduction in sound level within the protection zone from the sound level outside the protection zone.
Portable computer based non deterministic systems have been designed and could be available with development.
NOISEBATH® Security
The security of the patented NOISEBATH® system was developed from many years of research and is based upon the following six principles:
- Maximizing masking signal complexity and coverage by ambient mixing of target acoustics with masking sounds from speakers,
- Reducing the effectiveness of acoustic pick-up devices,
- Maximizing the difficulty of computer processing to filter and sort target signals,
- Hindering final listening by human transcribers,
- Reducing the value of any information recovered with meaningful sequences of words in the masking material generally related to target voice contents,
- Destroying any transcript’s credibility because of deliberate deceptive content contained in the masking material.
Some current Eavesdropping Techniques
And The Traditional Ones:
Testimonials
“The NOISEBATH System provides a high degree of protection against eavesdropping, and allows the user to discuss sensitive information in normal face-to-face conversation or when using the telephone. In addition, the system is easy to set up, and does not distract or interfere with your speech. I wish I could have had access to a system like this in the past to protect sensitive conversations of senior government and business leaders.”
Colonel Larry J. Shumann US Army(ret)
Former Commander, White House Communications Agency
“The operational use of NOISEBATH was a glowing success.”
After arresting two drug kingpins & seizing $70,000,000 in drugs
RCMP Canada –
“We were very surprised and pleased at the fine performance of the NOISEBATH system.”
Office of the President of a European country
The masking source material is produced according to a specialized NOISEBATH® formula and typically recorded on compact discs. Special systems with different playback schemes are available on a custom basis. Masking source material is available in different vocabularies, various languages, regional accents, dialects or even for a particular person or set of persons. Mixtures of voice types are also available. Masking source material is a combination of varying pink noise, synthetic speech, and actual speech configured to minimize disruption to the persons being protected and maximize disruption to electronic audio surveillance systems. It can also consist of specialized equipment sounds to mask intelligence bearing acoustics such as from a computer keyboard.
American Standard Discs incorporate voices and synthetic vocal sounds from a range of speakers and are in American English.
Regional Edition Discs are produced from actual voices and synthetic vocal sounds with themes and vocabulary as well as language or dialect selected by the customer such as various American regional accents.
Custom – Includes individual voices of one or more customer selected officials or target persons in languages customer specifies. This provides maximum protection against recovery of voice by techniques involving top level electronic surveillance and computer signal processing. Equipment masking sounds are custom products.
NOISEBATH® is compatible with secure telephones. The masking sounds have negligible impact on the remote secure phone. Typically, there is up to a 25db reduction in sound level within the protection zone from the sound level outside the protection zone.
NOISEBATH is a registered Trademark of Information Security Incorporated