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A section's score is now its peak dB above the noise floor capped by the sharpest rise within ONSET_SECONDS (0.5 s). Real events (voices, impacts, barks) rise fast and keep their full prominence; a gradual swell that outruns the 30 s floor blocks (gusts, distant approaching cars) still flags but scores near zero, so score-ranked review (chips, U/I highlights, "Highlights only" mode) surfaces events first. A section starting in a file's first 0.5 s is scored against the floor instead, so events cut off by a file split are not punished as swells. Old cached analyses carry now-wrong scores, so the cache gains a leading "detector" version key (DETECTOR_VERSION = 2) checked by both _cached_analysis_params() and the /api/analyze cache hit path; v1 caches never match and are recomputed on the next analyse. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>