Electrical network frequency (ENF) matching.

[Analogous]

Electrical network frequency (ENF) matching.

Came across this story titled “ How to date a recording using background electrical noise “
Isn’t this the exact opposite of what we all try/strive to reduce in music playback?
But the write up is loaded with info on power, electric signals and audible noise.

How to date a recording using background electrical noise | Robert Heaton

Three men were accused of selling firearms to South London gangs. At their 2012 trial in Croydon Crown Court, the prosecution played the jury a recording, taken undercover, of the trio allegedly arranging a sale. But the men’s lawyers claimed that the recording was a fake, and that the police...

robertheaton.com

 

[grindstone]

I gotta say, Analogous, you do get your reading in...

 

[arj]

Electrical network frequency (ENF) matching.

Came across this story titled “ How to date a recording using background electrical noise “
Isn’t this the exact opposite of what we all try/strive to reduce in music playback?
But the write up is loaded with info on power, electric signals and audible noise.

How to date a recording using background electrical noise | Robert Heaton

Three men were accused of selling firearms to South London gangs. At their 2012 trial in Croydon Crown Court, the prosecution played the jury a recording, taken undercover, of the trio allegedly arranging a sale. But the men’s lawyers claimed that the recording was a fake, and that the police...

robertheaton.com

Pretty cool Find !
Looks like the power frequency is like a clock signal ?

 

[Analogous]

I gotta say, Analogous, you do get your reading in...

Dated behavior in these days of 140 character articles
But the algorithms feed me more of whatever topics I click on or search for. They are scary efficient

 

[Analogous]

Pretty cool Find !
Looks like the power frequency is like a clock signal ?

Thanks. I would guess there is a relationship between the two, but that’s another question for google?