Underwater Binaural Communication System.
Final rept. Aug 69-Dec 70.
CBS LABS STAMFORD CT
Pagination or Media Count:
An advanced communication system for diver-to-diver and diver-to-ship voice communication was developed for swimmable testing and evaluation. The system is unique in that it provides binaural localization and direction finding for the diver and the ship system. The equipment operates on a 42 kHz AM ultrasonic channel with a useful range of 500 yards. The voice bandwidth is 250 Hz to 4 kHz. A novel uunderwater microphone system was developed in addition to a new, very efficient earphone which assured the attainment of a high level of intelligibility. Thorough testing of intelligibility, frequency response, and required loudness levels contributed to the success of the total system. Author
- Voice Communications