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Measures spectral similarity between the window and a sawtooth template whose lobes sit at prime harmonics. More accurate than HPS on clean instrumental signals; robust against octave errors because only prime harmonics contribute.\n\nSimplified single-window form: uses one FFT instead of the multi-resolution loudness pyramid of the original paper — sufficient for stationary windows.\n\n```js\nlet result = swipe(samples, { fs: 44100 })\n```\n\n| Param | Default | |\n|---|---|---|\n| `fs` | `44100` | Sample rate (Hz) |\n| `minFreq` | `60` | Minimum detectable frequency (Hz) |\n| `maxFreq` | `4000` | Maximum detectable frequency (Hz) |\n| `cents` | `10` | Candidate spacing in cents |\n| `threshold` | `0.15` | Minimum clarity to accept |\n\n**Use when:** Clean instrumental signals, studio recordings, where sub-Hz accuracy matters.
\n**Not for:** Very noisy or reverberant signals (single-window form lacks multi-resolution robustness of the full SWIPE').
\n**Ref:** Camacho & Harris, [\"A sawtooth waveform inspired pitch estimator for speech and music\"](https://doi.org/10.1121/1.2951592), JASA 2008.
\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"}