alt Hacker News> So they are claiming that ACR is done entirely through audio processing, and no visual data from the screen itself is used? That...doesn't seem plausible.
It apparently is.
Do you know the Nielsen Ratings? That's exactly how they know what people are watching these days. I've been contacted by them to be one of their subjects. They ship you a device that listens and recognizes based on content. They look for certain "fingerprints" in the audio and match against that - it's not capable of recording our conversations, etc (or so they claimed).
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The Shazam app on my wife’s iPhone can identify TV shows and movies very quickly, sometimes nearly instantly. Not sure how it does that.
This seems like a credulous argument based on no facts you have provided.
If you explained how the box was hooked up, it would be easier to judge whether there was a chance you were correct.
As it is, your description isn’t even clear whether or not the box contains a microphone.
Also, they didn't claim that.
It's how things were always done. The content from broadcasters has/had audio watermarks...frequencies which humans can't hear.
Regardless of it being how it always was done, such a finger print can easily be injected into LG's advertising ecosystem to infer everything about your demographic and what your interests and income might be and hit you with more specialized ads.
What we watch is not OK to be fed ads, especially if I wasn't using their service to being with and its monitoring the audio from any input to do this.
In this way, smart tvs and smart home devices are effectively hostile devices behind your router at home.
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Is that how they do it lately?
I participated once or twice a good number of years ago, and it was kind of a pain: It involved keeping a paper ledger of what was watched, and when. Correspondence was all handled by regular mail.
(As I recall, they included a small amount of cash ~every time they sent more correspondence and this was a primary motivator to keep going with it.)