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    I do not find the words “microphone”, “audio”, or “sound” anywhere in this pdf. Are you trying to suggest something?

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      Maybe OP is… hearing things?

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        Sorry forgot to link the audio part in the description. Somebody took the research and extended it to infer key timings from the keyboard sound

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          On a page labelled Ferros, I found one called KeyTap plus a related work about SSH that was labeled as an academic paper. I think he meant to submit the first. @yogthos can use this link if that’s the case.

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          This is a 2001 paper, suggest historical and [2001] ?