@audio/pitch-mcleod

McLeod Pitch Method (McLeod & Wyvill, 2005)

npm install @audio/pitch-mcleod

import mcleod from '@audio/pitch-mcleod'

McLeod & Wyvill, 2005. Normalized square difference with smarter peak picking. Handles smaller windows — good for vibrato and fast pitch changes.

let result = mcleod(samples, { fs: 44100 })

| Param | Default | | |---|---|---| | fs | 44100 | Sample rate (Hz) | | threshold | 0.9 | Peak selection threshold as fraction of global max |

Use when: Vibrato tracking, small hop sizes, singing voice where YIN occasionally double-triggers. Not for: Highly noisy signals (NSDF is less thresholded than YIN's CMND). Ref: McLeod & Wyvill, "A smarter way to find pitch", ICMC 2005. Complexity: $O(N^2/4)$ — same asymptotic cost as YIN.

Part of @audio/pitch — the pitch family umbrella. This README is generated from the umbrella docs.

MIT © audiojs