Privacy-first Raspberry Pi and browser-PWA noise monitor that stores sound-level events—not audio—in SQLite and produces accessible HTML and PDF/A reports with quiet-hours summaries.
python cli raspberry-pi privacy pwa offline-first sqlite systemd calibration indexeddb web-audio-api privacy-by-design noise-monitoring quiet-hours local-first pdf-a sound-level-meter no-audio responsible-tech accessible-reports
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Updated
Jul 20, 2026 - Python