# Changelog

## [Unreleased] - 2026-02-20

### Added
- **Dual-Threshold Detection:** Logic to capture the start and end of signals, not just the peak.
- **Signal Smoothing & Noise Filters:** Prevents detections from breaking into fragments and ignores short interference spikes.
- **Auto-Frequency Calculation:** Automatically adjusts bounding boxes to fit signal frequency ranges tightly.

### Changed
- **Signal Power Detection:** Switched from raw signal strength to power for improved accuracy.
- **CLI Workflow:** `Clear` and `Remove` commands now modify files directly (in-place) to avoid redundant copies.
- **Metadata Logic:** Updated labels to show detection percentages and overhauled internal metadata cleaning.
- **Viewer UI:** Moved legend outside the plot, added a black background, and adjusted transparency for better spectrogram visibility.

### Fixed
- Prevented redundant `_annotated` suffixes in file naming patterns.
- Simplified internal math to increase processing speed and precision.