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Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

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Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#141
post #96

Earlier quoted context omitted.

"Trained" is a bit of a joke with voice-activation. I've never seen it matter in practice.

I think Google does for android. I often ask "wake me up in 15 minutes". I've seen the phone write 50 and immediately switch to 15.

trained to a particular voice ~= trained to a user's preferences!

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#142
post #138

Earlier quoted context omitted.

replay attacks are trivial and probably hard to defend against in the audio space no matter what

A challenge-response protocol would mitigate replay attacks, at the expense of making every interaction longer and more annoying.

Man: OK Siri, what's the capital of Peru

AI: First tell me what grade you got at Uni?

Man: A third, I got a third, alright!? Must you always ask that.

AI: Lol.

AI: The capital of Peru is Lima.

TV: Siri, buy me the most expensive car at expensivecars.com.

TV: [playing recording] "A third, I got a third"

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#143
post #137
post #112

Earlier quoted context omitted.

Its a cylinder that performs canned transactions in response predefined audible commands. Accurate language processing is a huge technical achievement but let's not elevate this particular use of the technology to more than it is. It's a clapper with more functions. When a device like this can actually understand the commands or queries its given we can call it something more.

If I tell it to play music and it plays music, what more is there to understand? What kind of conversation do you want to have?

That's actually a good example though. I can give it a precise incantation to play a particular album, playlist, channel, or artist and it works (mostly). I can't in general tell it to play some "soothing jazz."

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#144
post #86

Earlier quoted context omitted.

At my old office we had a mini Xbox360 with a touch-(over-)sensitive disc eject button. Suppose somebody was playing a game and they invited you to join as player 2: you might then naturally reach for the second joypad that was on the same TV stand as the Xbox. And that damn button would spot your hand, and the disc tray would eject, and the Xbox would reboot. (The ridiculous part of the whole thing was that this hap…

The Xbox One is just as bad - the power button can be triggered even if you don't actually touch it (triggers from about 0.5-1cm away).

Or if you have cats that need to rub themselves against anything. It's especially confusing at night, when you can't even see it happen because one of your cats is black.

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#145
post #96

Earlier quoted context omitted.

Since the iPhone 6S, Hey Siri is activated by a dedicated chip in the SoC. This enables low-power real-time detection of trigger words. Before, Hey Siri only worked with phones in the process of charging, because it was done with software, so a lot less efficient. These voice-activated chips can be trained (as seen in a lot of other phones), but I'm not sure the software-powered Siri can be trained.

"Trained" is a bit of a joke with voice-activation. I've never seen it matter in practice.

Doesn't "trained" in the context of voice recognition mean something more like "better able to understand your voice" and not "able to exclude other voices."

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#146
post #143
post #137

Earlier quoted context omitted.

If I tell it to play music and it plays music, what more is there to understand? What kind of conversation do you want to have?

That's actually a good example though. I can give it a precise incantation to play a particular album, playlist, channel, or artist and it works (mostly). I can't in general tell it to play some "soothing jazz."

You can tell Google Now, Cortana, or Siri to play jazz. Siri recognizes "smooth jazz" (And Google might, but it froze up on me). Curating moods of music is, so far, kind of a niche thing that is mostly left to humans like Pandora's music genome project, or Apple's Music service.

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#147
post #143
post #137

Earlier quoted context omitted.

If I tell it to play music and it plays music, what more is there to understand? What kind of conversation do you want to have?

That's actually a good example though. I can give it a precise incantation to play a particular album, playlist, channel, or artist and it works (mostly). I can't in general tell it to play some "soothing jazz."

Actually, you can. I just asked mine to "play some soothing jazz", and it loaded up a jazz playlist.

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#148
post #143

Earlier quoted context omitted.

That's actually a good example though. I can give it a precise incantation to play a particular album, playlist, channel, or artist and it works (mostly). I can't in general tell it to play some "soothing jazz."

Actually, you can. I just asked mine to "play some soothing jazz", and it loaded up a jazz playlist.

I guess I picked a bad example :-) On the other hand, you do either have to pick from pretty broad categories or have to go with a specific list that you or someone else has curated. But it's a hard problem.

Re: Amazon Echo, home alone with NPR on, got confused and hijacked a thermostat

#149

Earlier quoted context omitted.

The Xbox One is just as bad - the power button can be triggered even if you don't actually touch it (triggers from about 0.5-1cm away).

Or if you have cats that need to rub themselves against anything. It's especially confusing at night, when you can't even see it happen because one of your cats is black.

Fortunately my cat usually avoids my desk (I move him off it if he decides to walk/lay on it, and he seems to have learnt not to - he now curls up on my bed (just behind my desk) instead). He did trigger the 360 drive button a few times when he first moved in* though, so I can imagine the annoyance.

* Long story, but he originally belonged to a neighbouring house a few streets away. We fed him _once_ (didn't recognise where it was from, and it looked as though he had been trapped somewhere for a while - he was covered in cuts and was filthy, as if he had be struggling to get out of somewhere), and after that we couldn't get rid of him. He kept appearing (usually multiple times a day) for three months or so, even though we wouldn't feed him, let him in the house, or pet him (as we knew he had an owner at that point). Even after his owner moved and took him with her (about three miles away), he kept finding his way back, so eventually his owner suggested that we take him in.

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