How music works, using Ruby
summary
Recreates common recording tricks as runnable Ruby: reads and writes PCM with wavefile gem, renders sample views with chunky_png, generates sine/square/white-noise oscillators (440 Hz example) and mixes channels by summing with gain reduction to avoid clipping. Implements amplification that produces digital clipping and a simple compression by threshold-and-ratio followed by makeup gain, shows the distortion effect used musically, and writes output files that actually play and include a full cover built from the generated samples.
AI-written summary · about
chapters (11)
- 0:00Music and Ruby intro
- 1:48What music is
- 5:26Music recording history
- 8:15Digital audio basics
- 9:58Visualizing audio in Ruby
- 12:25Audio signal amplification
- 13:49Synthesizer sounds
- 17:27Fourier waveform mixing
- 18:29Audio track mixing in Ruby
- 19:31Audio compression
- 22:00Live Ruby music demo
