You can time the envelope of the ramp, though | Hacker News

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		pillefitz 1 day ago \| parent \| context \| favorite \| on: Locating the source of a mysterious beep You can time the envelope of the ramp, though
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uptrails 1 day ago [–]

Not with any kind of precision if the slope is gentle and you're using random commodity devices with different frequency response, automatic gain control, etc.

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