Supercon 2023: Receiving Microwave Signals From Deep-Space Probes

Here’s the thing about radio signals. There is wild and interesting stuff just getting beamed around all over the place. Phrased another way, there are beautiful signals everywhere for those …

Feast Your Eyes On These AI-Generated Sounds

The radio hackers in the audience will be familiar with a spectrogram display, but for the uninitiated, it’s basically a visual representation of how a range of frequencies are changing with …

Your Noisy Fingerprints Vulnerable To New Side-Channel Attack

Here’s a warning we never thought we’d have to give: when you’re in an audio or video call on your phone, avoid the temptation to doomscroll or use an app that requires a lot of s…

Bass Reactive LEDs For Your Car

[Stephen Carey] wanted to spruce up his car with sound reactive LEDs but couldn’t quite find the right project online. Instead, he wound up assembling a custom bass reactive LED display using…

Identifying Malware By Sniffing Its EM Signature

The phrase “extraordinary claims require extraordinary evidence” is most often attributed to Carl Sagan, specifically from his television series Cosmos. Sagan was probably not the first…

Microphone Visualisation/Spectrograms for GNU/Linux (Real-Time Status for Audio Input)

When you are recording something and cannot be entirely sure that input from the microphone is indeed being registered/saved it can be helpful to use a spectrogram; today's data loss was a motivator for exploring what's out there for GNU/Linux users