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Forensic Science - Extortion - Oscillogram

  • Date:2012.07.18

Forensic Science - Extortion - Oscillogram

Oscillogram before (top) and after (bottom) adaptive filtering: The upper diagram (thick “belly”) shows the noise level before filtering; the image below shows a clear difference between language as the useful signal and the noise disturbance. Oscillogram before (top) and after (bottom) adaptive filtering: The upper diagram (thick “belly”) shows the noise level before filtering; the image below shows a clear difference between language as the useful signal and the noise disturbance. Source: BKA

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