Detects peak amplitude at 258.4 Hz. Tags sample as Key "C", creating a dissonant clash when used in F major.
Isolates true acoustic root at 86.1 Hz. Correctly classifies 258.4 Hz as the 3rd partial (perfect 5th overtone).
Everyday Analogy: Imagine a wine bottle labeled "Sweet Vanilla" when it is actually "Spicy Chili" because the label scanner only read the brightest color on the cap. When a musician trusts the AI's wrong key label (C instead of F) and plays a bassline underneath, the song clashes terribly. Click below to hear both basslines against the singing bowl!
Evaluates integer divisors \(f_{\text{peak}} / k\) against spectral energy to isolate true \(f_0\):