The Military Now Has Tooth Mics For Invisible, Hands-Free Radio Calls – Defense One

By | settembre 16, 2018

The Military Now Has Tooth Mics For Invisible, Hands-Free Radio Calls – Defense One

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The Military Now Has Tooth Mics For Invisible, Hands-Free Radio Calls

The future of battlefield communications is resting comfortably near your back gums.

Next time you pass someone on the street who appears to be talking to themselves, they may literally have voices inside their head…and be a highly trained soldier on a dangerous mission. The Pentagon has inked a roughly $10 million contract with a California company to provide secure communication gear that’s essentially invisible.
Dubbed the Molar Mic, it’s a small device that clips to your back teeth. The device is both microphone and “speaker,”  allowing the wearer to transmit without any conspicuous external microphone and receive with no visible headset or earpiece. Incoming sound is transmitted through the wearer’s bone matter in the jaw and skull to the auditory nerves; outgoing sound is sent to a radio transmitter on the neck, and sent to another radio unit that can be concealed on the operator. From there, the signal can be sent anywhere.
“Essentially, what you are doing is receiving the same type of auditory information that you receive from your ear, except that you are using a new auditory pathway — through your tooth, through your cranial bones — to that auditory nerve. You can hear through your head as if you were hearing through your ear,” said Peter Hadrovic, of Molar Mic creator Sonitus Technologies. He likened the experience to what happens when you eat a crunchy breakfast cereal — but instead of hearing that loud (delightfully marketable) chewing noise, you’re receiving important communications from your operations team.
Your ability to understand conversations transmitted through bone improves with practice. “Over the period of three weeks, your brain adapts and it enhances your ability to process the audio,” said Hadrovic. But even “out of the gate, you can understand it,” he said. (more below)

The Molar Mic connects to its transmitter via near-field magnetic induction. It’s similar to Bluetooth, encryptable, but more difficult to detect and able to pass through water.
Sonitus received early funding from In-Q-Tel, the nonprofit investment arm of the , to develop the concept. Hadrovic declined to say whether   operatives had used the device in intelligence gathering. But the Molar Mic has seen the dust of Afghanistan and even played a role in rescue operations in the United States.
In Aug, 2016, a connection Hadrovic met through In-Q-Tel introduced the company to the Defense Innovation Unit Experimental, or DIUx (since rebranded simply ). They linked Sonitus to their “warrior in residence” and several other pararescuemen, or PJs, from the Air National Guard’s 131st Rescue Squadron at Moffett Field in Mountain View, California, near the headquarters.Pararescuemen airdrop behind enemy lines to rescue downed aircrews.
A few of the airmen took prototypes of the device on deployment to Afghanistan. Although they didn’t use it during missions, they were able to test it repeatedly and offer feedback. Hadrovic said the 14 months of testing were critical to improving the product for use by the military.
In 2017, a few of the PJs from the 131st brought Molar Mic along when they deployed to Texas to help with rescue operations for Hurricane Harvey. Hadrovic said the airmen were pleased with its performance during complicated operations involving water, helicopters, and a lot of external noise.
“This guy is standing in neck-deep water, trying to hoist a civilian up into a helicopter above. He says, ‘There is no way I would be able to communicate with the crew chief and the pilot if I was not wearing your product.’” (More below)

A graph illustrating the communications network of the “Molar Mic” from Sonitus.

The same technology holds the potential for far more rich biometric communication between operators and their commanders, allowing soldiers in the field and their team to get a timely sense of how the soldier is responding to pressure or injury, without him or her having to communicate all of that explicitly. It’s something that the military is working toward.
“As we look to the future human-machine interface… the human creates a lot of information, some of it intentional, some of it unintentional. Speaking is one form of information creation,” says Hadrovic. “Once you’ve made something digital, the information can be interspersed…We have a tremendous wealth of opportunities to communicate out of the person and back to the person, information that can be either collected from them and processed offline and given back in a nice feedback loop. What we’ve done is invested in the platform that will support these future elements.”
Patrick Tucker is technology editor for Defense One. He’s also the author of The Naked Future: What Happens in a World That Anticipates Your Every Move? (Current, 2014). Previously, Tucker was deputy editor for The Futurist for nine years. Tucker has written about emerging technology in Slate, … Full bio

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