Video recordings of aircraft sounds can pinpoint exact location

Summary

Simon Willison highlights a Colsto demo on YouTube. The demo shows that when the nearly inaudible airplane noise in a video's audio track is analyzed for Doppler curves and matched with ADS-B flight data, the exact location where the recording was made can be determined.

Why it matters

This technique turns ubiquitous background sound into a precise location signal. It raises serious privacy concerns for anyone recording video near airports or flight corridors. It demonstrates how passive acoustic data, when combined with public flight tracking databases, dismantles the assumptions of anonymity in user-generated content.

Highlights

• Doppler curve analysis of airplane noise extracts speed, distance, and gaps between flights
• ADS-B matching converts these acoustic signatures into precise geographic locations
• The method works on the 'nearly imperceptible' background sound found in almost every outdoor recording

Critical take

The post is essentially a short link note lacking independent verification. Real-world reliability depends on recording quality, proximity to active flight corridors, and the availability of matching ADS-B data at the relevant time. The article does not address these limitations.