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Robust to the missing-fundamental problem.\n\n```js\nlet result = hps(samples, { fs: 44100 })\n```\n\n| Param | Default | |\n|---|---|---|\n| `fs` | `44100` | Sample rate (Hz) |\n| `harmonics` | `5` | Number of harmonic products |\n| `minFreq` | `50` | Minimum detectable frequency (Hz) |\n| `maxFreq` | `4000` | Maximum detectable frequency (Hz) |\n| `cents` | `10` | Candidate spacing in cents |\n| `threshold` | `0.1` | Minimum clarity to accept |\n\n**Use when:** Harmonic-rich signals (guitar, piano, brass). Naturally handles missing fundamentals.
\n**Not for:** Pure sinusoids (only one harmonic), very noisy signals.
\n**Ref:** Schroeder, [\"Period histogram and product spectrum\"](https://doi.org/10.1121/1.1910902), JASA 1968.
\n**Requires:** Power-of-2 window length — throws otherwise.\n\n---\n\nPart of [@audio/pitch](https://github.com/audiojs/pitch) — the pitch family umbrella. This README is generated from the umbrella docs.\n\nMIT © [audiojs](https://github.com/audiojs)\n","readmeFilename":"README.md"}