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Exemplar: Series 1: Episode 3

Limelight

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The Spectral Signature of a Voice Recording

We believe it is more probable than not that this is an authentic recording. We can find no evidence of tampering within the exhibit. The voices demonstrate a consistent spectral signature. There are a number of tells, such as, we would expect to see unfamiliar cadences and a slight metallic quality. It's one thing in law-quality phone conversation, but it wouldn't bear close scrutiny. But it is possible in theory.

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