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makepad/libs/piano_model/tests/data/salamander_v3.tsv
Admin b49e2e5060 piano-model: calibrate partial gains and decay against recordings 
Apply immutable pitch/velocity-interpolated modal calibration while preserving an explicit uncalibrated constructor. Add offline acoustic tooling, reference measurements and regression coverage.

Validation: 16 calibration/acoustic release tests passed, one ignored.
2026-09-05 01:42:39 +02:00

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# salamander-acoustic-v1
# provenance {"author": "Alexander Holm", "corpus": "Salamander Grand Piano V3 48kHz/24bit (README heading says V2)", "instrument": "Yamaha C5", "license": "CC BY 3.0", "license_url": "http://creativecommons.org/licenses/by/3.0/", "readme_file": "README", "readme_sha256": "04ddba91bcafcb4c53dee7b004479f79af47bb92574f06bbe741b00c3ca64e0e", "sfz_file": "SalamanderGrandPianoV3.sfz", "sfz_sha256": "1326f680002fe112c3cd74b298f66fc78089e325bd9937d89e5efff58f3ce0d2"}
# method {"acceptance": "provisional diagnostics only; ignored Rust comparison is not final acceptance", "band_edges": "lower inclusive, upper exclusive", "bands_hz": [[20, 500], [500, 2000], [2000, 8000]], "decay": "negative OLS slope of 10log10 band power, 100ms Hann windows starting 0.1..0.9s in 50ms hops; positive means decay, dB/s", "floor": "power ratios floored at 1e-15; decay floor = whole-note 0..2s mean square * 1e-15", "onset": "first nonoverlapping 1ms RMS frame > -40dB re peak frame in first 0.5s; align to frame start", "onset_energy": "unwindowed stereo sum-of-squares 0..5ms / 0..50ms", "partial_bands": "[(n-0.4)*f0,(n+0.4)*f0), n=1..6, equal-tempered MIDI f0; 10log10(P1/max(P2..P6))", "partial_windows_s": [[0.05, 0.3], [1.0, 2.0]], "rms": "unwindowed stereo RMS 0..2s; absolute dB re native C4 at SAME velocity plus within-set C4 register dB", "sfz": "native attack-region selection only; no transposition, velocity gain, envelopes, loops or release/noise layers applied", "share_denominator_hz": [20, 20000], "share_windows_s": [[0.05, 0.1], [1.0, 2.0]], "spectrum": "periodic Hann; next-power-of-two FFT; one-sided power / (Nfft * sum(window^2))", "stereo": "mean of independent channel powers; never FFT of L+R", "version": 1}
# thresholds_abs 6.0 6.0 6.0 6.0 6.0 6.0 6.0 0.15 8.0 8.0 8.0
note velocity layer lovel hivel native_file sha256 onset_sample rate_hz rms_0_2 early_mid_share_db early_high_share_db late_mid_share_db late_high_share_db p1_cluster_50_300_db p1_cluster_1_2_db rms_register_db onset_energy_5_over_50 decay_low_db_s decay_mid_db_s decay_high_db_s
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