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20 lines
963 B
Markdown
20 lines
963 B
Markdown
# Bundled ML models
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## basic_pitch.onnx — Spotify Basic Pitch (polyphonic note detection)
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The note model used by `MlNoteDetector` (`src/audio/MlNoteDetector.cpp`) for
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TST-style polyphonic note detection.
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- **Source:** the `basic-pitch` PyPI package, v0.4.0 —
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`basic_pitch/saved_models/icassp_2022/nmp.onnx`, copied here verbatim.
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- **Upstream:** Spotify Basic Pitch — https://github.com/spotify/basic-pitch
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- **License:** Apache-2.0 (see the upstream `LICENSE`).
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- **SHA-256:** `2c3c1d144bfa61ad236e92e169c13535c880469a12a047d4e73451f2c059a0ec`
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- **I/O contract:** input `[batch, 43844, 1]` float32 (~2 s mono @ 22050 Hz);
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outputs onset / note / contour posteriorgrams. See
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`tests/spike/README.md` for the verified contract.
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Bundled into the packaged app via `electron-builder`'s `extraResources`
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(Constitution IV — offline first-run). When the file is absent the engine
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falls back to the YIN `PitchDetector` / `ChordScorer` (Constitution VII).
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