How Computers Hear Harmony: Chords, Keys, and Music Theory
How computers listen to audio, decode musical harmony, and detect song keys using first-principles music theory
Understand how chord and key recognition actually works. You will learn how sound waves become digital numbers, how the Constant-Q chromagram isolates musical notes, how simple geometry identifies major and minor triads without complex AI models, how majority-vote smoothing cleans up audio jitter, and how cognitive psychology can estimate a home key when the music stays near one major or minor center.
Episoden
- 1
Sound Waves, Frequencies, and the 12 Musical Notes
Before a computer can name a chord, it has to understand sound. Discover how air vibrations turn into numbers, why octaves are like elevator floors, and how all Western harmony fits into 12 simple pitch buckets.
- 2
The Chromagram – Translating Sound Waves into a 12-Note Musical Map
How do you translate a messy, overlapping sound wave into clean musical notes? Meet the Constant-Q Transform and the Chromagram—the 12-lane highway of musical audio analysis.
- 3
Chord Templates & Cosine Similarity – Recognizing Chords Without AI Models
Think you need a deep neural network to identify chords? Think again. Learn how 24 basic blueprints and simple vector geometry recognize chords without training a model.
- 4
Cleaning the Noise – Smoothing Flickers & Building Clean Timelines
Raw frame-by-frame chord guesses are jumpy and noisy. Discover why standard signal filtering breaks on chord labels, how majority voting fixes it, and how to build a crisp chord chart.
- 5
Finding the Song's Key & Measuring Real Success
How does a computer know the overall key of a song? Learn about the Krumhansl-Schmuckler cognitive profiles, Pearson correlation, and how to score chord accuracy like a real musician.
Benachrichtigungen enthalten eine kurze Vorschau und einen Link zum privaten Reader (Rhythmus: wöchentlich). Vollständige Episodeninhalte verbleiben im Reader, und Daten werden niemals verkauft.
Burak Gündüz
Creative Coder
- Episoden
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- Rhythmus
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