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For The Love of Digital Forensics: Where Would You Find 1111 1111 1111 and “ID3"?

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Well, the answer is, in an MP3 file. With audio, we normally sample at twice the highest frequency of the signal, and so if we have hi-fi quality audio we normally define a 22kHz bandwidth (as this is the range your ear can hear). Then our sampling rate becomes around 44.1kHz, which gives us one sample every 22 microSeconds. Each sample has 16 bits…

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Prof Bill Buchanan OBE FRSE
ASecuritySite: When Bob Met Alice

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. Based in Edinburgh. Old World Breaker. New World Creator. Building trust.