Tech

Real Time Hidden Acoustic Signals

Researchers in China and the U.S. have created a system for receiving hidden data in audio signals using smartphone microphones. The Dolphin system uses commercial off the shelf (COTS) smartphones to detect, error correct and decode hidden data transmitted in audio within an 8 meter distance and up to an angle of 90 degrees. Transmission of sport stats data via stadium speakers without the need for internet connectivity is one possible implementation of this mass transmission system.

AntBot

Researchers at CNRS and Aix-Marseille University, in the Institut des Sciences du Mouvement – Étienne Jules Marey (ISM) have developed a robot that can navigate outdoors without GPS. The AntBot mimics the cataglyphis desert ants, which navigate using an internal celestial compass based on the sky's polarised light combined with counting their steps taken.

Oceans S1

Team Oceans have launched a Kickstarter campaign to produce an ultrasonic communication watch for underwater divers. The watch allows for buddy communication underwater by sending an ultrasonic pulse that is detected by other watches in the vicinity, which then vibrate to grab the attention of the wearer.

Bodhi Linux - Media Release

Dr. Guiseppe Torre of the Digital Media and Arts Research Centre at the Universoty of Limerick has created a free linux distro called Bodhi Linux - Media Release. The distro includes a list of pre-installed free software that digital artists can use to build, create, program, edit and stream graphic, video, photo ad 3D art and music.

Alias Voice Assistant Parasite

Bjørn Karmann and Tore Knudsen have created Alias, a parasite smart device that can be used to stop your voice assistant device from spying on you. The DIY device deafens the assistant's microphone with white noise, and only stops when alias hears you speak the device's wake word. Alias then cuts the white noise and relays a recording of the wake word to the assistant, allowing it to work as intended. Details on how to build the alias device are available on Instructables.

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