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Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

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Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#11
post #7

Now imagine doing this with a high res satellite anywhere on earth.

That would only be useful if everyone were outside, and you wanted a split second of many different people's conversations. Satellites move rather quickly relative to the Earth's surface.

Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#12
Definitely some interesting applications.

Sort of orthogonal but is there a similar way to get sound from seeing someone's lip's move in a video -- would it then be possible to recover audio/conversations from old video only files?

Edit: Guess they can read lips via AI https://www.techemergence.com/machine-learning-that-learns-m...

Now getting the high quality sound from just video would be amazing.

Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#13

Earlier quoted context omitted.

With enough processing power, you can listen to anyone as long as you can get an object in frame that’s vibrating with speech (the UK and Chinese CCTV networks comes to mind). Depending on resolution, I’d expect this to be the case for any footage already stored. It’s just a matter of having a distributed computing job kicked off to comb through video data and add the additional audio metadata. Will you only speak of…

> Will you only speak of sensitive subjects in rooms with no windows? That is exactly why almost all DOD secure areas are windowless.

Don’t disagree. Scale that to an entire populace though.

Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#14
post #3

Rule of thumb is never having sensitive conversations where such exploits are feasible.

With enough processing power, you can listen to anyone as long as you can get an object in frame that’s vibrating with speech (the UK and Chinese CCTV networks comes to mind). Depending on resolution, I’d expect this to be the case for any footage already stored. It’s just a matter of having a distributed computing job kicked off to comb through video data and add the additional audio metadata. Will you only speak of…

"Will you only speak of sensitive subjects in rooms with no windows" - yes, the building standards for secure facilities (i.e. a room where discussing classified information above a certain grade is permitted) mandate no external windows, and much more than that.

Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#16

Earlier quoted context omitted.

> Will you only speak of sensitive subjects in rooms with no windows? That is exactly why almost all DOD secure areas are windowless.

Don’t disagree. Scale that to an entire populace though.

In the brave new world that's being built, the entire population (most of it) doesn't get to have true confidentiality if somebody is sufficiently interested in them.

Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#17
post #3

Rule of thumb is never having sensitive conversations where such exploits are feasible.

With enough processing power, you can listen to anyone as long as you can get an object in frame that’s vibrating with speech (the UK and Chinese CCTV networks comes to mind). Depending on resolution, I’d expect this to be the case for any footage already stored. It’s just a matter of having a distributed computing job kicked off to comb through video data and add the additional audio metadata. Will you only speak of…

> Will you only speak of sensitive subjects in rooms with no windows?

Of course. I mean, that's been obvious for at least a decade.

> Will we be silent in public?

There's no need to be silent. However, one must be aware of surveillance risks, and act accordingly.

> These are issues where technology, politics, and human rights intersect.

For sure. But just wanting privacy doesn't work. And you must always deal with what's so.

Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#18

Earlier quoted context omitted.

> Will you only speak of sensitive subjects in rooms with no windows? That is exactly why almost all DOD secure areas are windowless.

Don’t disagree. Scale that to an entire populace though.

Well, windowless bathrooms are not uncommon. And most modern construction has walk-in closets, which typically lack windows. Even so, a source of white noise is always prudent.

Re: Algorithm recovers speech from a potato-chip bag filmed through glass (2014)

#19

Earlier quoted context omitted.

With enough processing power, you can listen to anyone as long as you can get an object in frame that’s vibrating with speech (the UK and Chinese CCTV networks comes to mind). Depending on resolution, I’d expect this to be the case for any footage already stored. It’s just a matter of having a distributed computing job kicked off to comb through video data and add the additional audio metadata. Will you only speak of…

"Will you only speak of sensitive subjects in rooms with no windows" - yes, the building standards for secure facilities (i.e. a room where discussing classified information above a certain grade is permitted) mandate no external windows, and much more than that.

I tried to look this up, info here: https://www.dni.gov/files/NCSC/documents/Regulations/Technic... (Ch. 3 sec. F, pg. 13)

F. SCIF Window Criteria

1. Every effort should be made to minimize or eliminate windows in the SCIF, especially on the ground floor.

2. Windows shall be non-opening.

3. Windows shall be protected by security alarms in accordance with Chapter 7 when they are within 18 feet of the ground or an accessible platform.

4. Windows shall provide visual and acoustic protection.

5. Windows shall be treated to provide RF protection when recommended by the CTTA.

6. All windows less than 18 feet above the ground or from the nearest platform affording access to the window (measured from the bottom of the window), shall be protected against forced entry and meet the standard for the perimeter.

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