Struct KeyDetector 

pub struct KeyDetector;

Key detector using Krumhansl-Schmuckler profiles.

Examples

use resonant_analysis::key::KeyDetector;
use resonant_analysis::chroma::ChromaVector;

// All-A chroma (strong A, C#, E — A major triad)
let mut cv = ChromaVector { bins: [0.0; 12] };
cv.bins[9]  = 1.0; // A
cv.bins[1]  = 0.8; // C#
cv.bins[4]  = 0.6; // E

let result = KeyDetector::new().detect(&[cv]);
assert!(result.is_some());

Implementations

impl KeyDetector

pub fn new() -> Self

Creates a new detector.

pub fn detect(&self, chroma_frames: &[ChromaVector]) -> Option<KeyEstimate>

Classifies a sequence of chroma frames and returns the best-matching key.

Returns None if chroma_frames is empty.

Trait Implementations

impl Default for KeyDetector

fn default() -> Self

Returns the “default value” for a type.