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Casio device lets scuba divers converse underwater


November 13, 2012

Casio's Logosease device allows scuba divers to talk to one another, without the use of full-face masks (Photo: Shutterstock)

Casio's Logosease device allows scuba divers to talk to one another, without the use of full-face masks (Photo: Shutterstock)

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Ordinarily, if scuba divers want to talk to one another underwater, they have to wear special full-face masks that leave their mouths unobstructed by the regulator. Such masks are pricey and a bit cumbersome, however, so they’re usually only used by professional divers. Today, however, Casio announced the development of a new type of underwater voice communications device that works with plain old “eyes-and-nose-only” dive masks.

Known as Logosease, the compact 3.8-ounce (108-gram) transceiver attaches to the mask’s retaining straps, resting against the side of the diver’s head. Using bone conduction (the vibrations carried through the wearer’s skull, in other words), its microphone is then able to pick up what the diver is saying.

Needless to say, their words are going to be a bit garbled, what with their having a regulator in their mouth, and a blocked nose. The transceiver incorporates “digital speech conversion technology,” however, that is said to make difficult-to-voice consonant sounds – such as n, m, b and p – easier to understand.

Like existing full-face-mask-based systems, the device transmits the user’s speech via ultrasound. Those ultrasound waves are picked up by Logosease transceivers worn by other divers, and played back as audible speech via each unit’s integrated bone conduction-based speaker. Users can switch between reception and transmission modes simply by tapping the device.

The system reportedly allows divers to communicate within visual range – a distance that could vary wildly, depending on water conditions. The unit itself is watertight to a depth of 180 feet (55 meters), which should be plenty for most recreational divers.

A prototype will be unveiled in Las Vegas at the Diving Equipment and Marketing Association Show, which starts tomorrow. There is no word yet on the availability or pricing of a commercial version.

Source: Casio

About the Author
Ben Coxworth An experienced freelance writer, videographer and television producer, Ben's interest in all forms of innovation is particularly fanatical when it comes to human-powered transportation, film-making gear, environmentally-friendly technologies and anything that's designed to go underwater. He lives in Edmonton, Alberta, where he spends a lot of time going over the handlebars of his mountain bike, hanging out in off-leash parks, and wishing the Pacific Ocean wasn't so far away. All articles by Ben Coxworth

Very, very nice, bravo!

Volodya Kotsev

Diver communication systems were all quite terrible until Hollywood got into the business.

The producers of "The Abyss" wanted to record the actors voices on set, under water instead of having to dub them in later. So they had a better system invented just for the movie.

That system went on to make a lot of money for the company that developed it.

There were also some other diving technologies invented for that movie, things divers had thought about for years but no diving equipment company would put the money and time into developing.

Movie money made them possible by making fact out of science fiction.

Gregg Eshelman

Would be nifty if you can modify this thing to work as personal sonar (and even sensing system for the blind) and shark/pests repellent.

Savin Wangtal

Hey. Here's an even better idea. Use it for personal watercraft to personal watercraft or boat to skier communication. There is currently nothing available that works in these windy, noisy, wet environments. By using bone conduction you eliminate the background noise and this thing is obviously waterproof.


Any names of the team who invented this?

Michael Bettasso
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