2026-11-08
Physics Sound Waves Too Abstract? How a 12-Year-Old Built a Real-Time AI Audio Oscilloscope and Guitar Tuner in 60 Minutes
Middle schoolers often confuse pitch (frequency in Hz), loudness (amplitude in dB), and timbre (waveform harmonics) because sound waves are invisible. Here is how I guided a 12-year-old boy to use Web Audio API and AI to build a live oscilloscope and guitar tuner in one hour.
