The hidden background noise that can catch criminals
Electrical Network Frequency analysis, ENF analysis, matches background hum against power grid logs. I talked to one of the researchers who works on it, and also set them a challenge. Thanks to @answerinprogress, @hannahwitton and @SteveMould! 🟥 MORE FROM TOM: https://www.tomscott.com/ (you can find contact details and social links there […]
