v1.1.0

Fixes for short recordings and the privacy audit. Results on long recordings are unchanged: the six-seed self-test reproduces the v1.0.0 numbers exactly.

Fixed

• Short clips were never detected. With fewer than six usable 60 s windows (clips under about two minutes), detect compared each window with a median of itself and could not flag anything, however clear the curve. Such clips, and recordings that are tonal almost throughout, are now compared with a calibrated noise model: the same pipeline run on synthetic Gaussian noise for the same window length. Whitening makes that level independent of the noise's loudness and colour; it matched the background of all six self-test recordings within ±0.06 dB.
• audit reported low when it could not judge. An empty detection no longer means low risk. Insufficient evidence now gives undetermined, a noise-model check gives low, limited check, and the output includes the detection status, its reasons and what a low rating covers.
• Harmonic stacking was silently off in detect. Over 40–400 Hz under a 600 Hz spectrogram only one harmonic fits for every candidate, so --harmonics 3 acted as 1. The count used is now reported by detect and trace, detect defaults to the honest value of 1, and a band above the spectrogram top keeps the fundamental instead of summing to zero. Per-candidate harmonic counts were tried and made both detection and tracing worse in the self-tests, so they were not adopted.
• The last seconds of a recording were never examined. The final detection window now ends at the end of the recording.

Changed

• detect writes diagnostics to <out>.diag.json (status ok / limited / insufficient, reasons, baseline, harmonics used, hits shorter than --min-dur). boxes.json keeps its format.
• New detect options: --window, --step, --null-db.
• New regression tests (tests/test_detection.py), run in CI.

Measured on synthetic data

• 73 noise-only clips (12–300 s, with mains hum and speech bursts): no false events.
• Passes within 1.5 km in 20–69 s clips: 48 of 48 detected; at 2 km, about half.
• Real wind and traffic noise were not part of these tests.

Downloads

File	Language
audio-flyover-geolocation-en.skill	English
audio-flyover-geolocation-zh-CN.skill	简体中文

Reinstall over v1.0.0 the same way you installed it.