Minigame Python Beginner 25 min

Reverberation and Sabine's formula: a clap in a church, then curtains

Afterwards you can compute a room's reverberation time with Sabine's formula, measure it from a decay curve, and tell echoes, flutter, and reverberation apart.

Partial differential equations·Signal processing Engineering, Physics

Minigame Python Beginner 25 min

Plucked string harmonics: why a pluck at a third has no third harmonic

Afterwards you can expand any string shape in a Fourier series, follow a pluck's kinks with d'Alembert, and predict its missing harmonics and its brightness.

Partial differential equations·Signal processing Mathematics, Physics

Minigame Python Beginner 25 min

Active noise cancellation: why headphones silence the drone, not the voices

Afterwards you can explain active noise cancellation by superposition and compute in decibels how a fixed delay limits it to low frequencies.

Signal processing Engineering, Physics