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Bharat Aawaz
Grid Signatures: Using ENF to Verify Recording Times
Electrical Network Frequency (ENF) analysis is revolutionizing how journalists verify the exact timing of leaked footage. Audio recorded near electrical devices subtly captures the continuous hum of the local power grid. By matching these microscopic frequency fluctuations against the national grid's historical database, reporters can prove if a recording's timestamp has been altered.
The Bharat Media Association highlights this advanced forensic technique as essential for debunking false alibis and establishing ironclad investigative timelines.
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