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Underwater speech : Casio develops pocket-sized transceiver for scuba diving use

By November 14, 2012 Drop a comment
Logosease

Yamagata Casio, a manufacturing subsidiary of Casio Computer announced Logosease, an underwater transceiver that lets users enjoy spoken conversation when scuba diving.

The Logosease is a transceiver that allows users to have spoken conversations underwater, changing the diving experience by solving the problem of communication limited to written signs and basic hand signals. With the Logosease, which is small enough to fit into a pocket and attach to the strap of a diving mask, divers can converse normally with the scuba regulator in their mouths. Wireless communications enabled by ultrasound and bone conduction technologies.

The Casio's creation employs an ultrasound range of 32 kilohertz to enable wireless communication between users within visual range underwater. Multiple divers can each wear a transceiver and enjoy conversing in a group. The microphone and speaker employ a bone conduction method, and the reception and transmission modes can be switched by lightly tapping the device once.

The Logosease modulates garbled underwater speech and transmits it, making it easier to hear. This technology makes it easier to hear the voiced "n," "m," "b" and "p" consonants, which are difficult to pronounce when diving because the nose is blocked by the scuba mask and the air-supplying regulator is in the mouth. The product is waterproof up to 180 feet. Casio will display a prototype at the Diving Equipment and Marketing Association Show 2012 in Las Vegas from November 14. 

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