52 Blue: The Mystery and Legacy of the Loneliest Whale
109
The 52-hertz whale is a scientific anomaly whose unique, high-pitched call has made it a global icon of solitude and a subject of intense cultural fascination.
Signal Processing
Digital and analog signal processing techniques including transforms (DFT, FFT), filtering, spectral analysis, and related mathematical foundations.
Reading List
The Hidden Security Risks of Voice AI
140
Voice AI systems can be covertly controlled by audio signals that are undetectable or unrecognizable to human listeners.
Škoda DuoBell: A bicycle bell that outsmarts even smart headphones - Škoda Storyboard
The Škoda DuoBell is a specialized bicycle bell designed to penetrate noise-canceling headphones to prevent accidents between cyclists and pedestrians.
Web Audio Studio: Visual Debugging for Browser Audio
An interactive browser-based tool for visualizing, debugging, and experimenting with Web Audio API signal chains in real time.
Cooley–Tukey: Turning the DFT into O(N log N) (and Why FFT ≠ DFT)
Cooley–Tukey factorizes and reindexes the DFT to turn O(N^2) work into O(N log N), forming the backbone of practical FFTs while clarifying that FFT = algorithm, DFT = result.