3 ms·
>Supposedly the 60Hz or 50Hz hum in recordings can be correlated with variations in the electrical grid frequency. That's pretty cool. I wonder if this has eve
by eriknstr 10y ago
>Supposedly the 60Hz or 50Hz hum in recordings can be correlated with variations in the electrical grid frequency.
That's pretty cool. I wonder if this has ever been used to track down someone.