Toyota ran an anti-distracted driving radio ad where they did this. The ad narrator says "Hey Siri, please turn airplane mode on." https://www.youtube.com/watch?v=NqZBVTMrgFA
siri has itself trained to a single user's voice. I've never had anyone else's voice activate my phone with "Hey Siri". Admittedly, it usually takes me saying "Hey Siri" 3 times before it recognizes my voice, but I'm 100% certain a radio ad would get no response from my phone.
Siri is definitely not trained to a single voice. And yes, the car radio can turn it on. I've had a podcast discussion of Siri trigger it. It became such a joke that some podcasters have another phrase they say when they mean "hey Siri".
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.
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."
Just want to chime in and say that I can activate my girlfriends iPhone by saying "Hey Siri" in a girly sounding voice. It's trained to only her voice but I can trigger it. So it's not foolproof as you make it seem.
My wife's phone regularly (maybe once a month), starts listening in response to me saying something, which isn't even "Hey Siri", despite never training with my voice. My voice does not sound anything like my wife's.
So, I think the error rate is simply not low enough to make conclusive claims about what it might or might not do.
It would only work if the iPhone was plugged into power AND they had turned on the capability for Siri to be activated by voice, which is limited to when the iPhone is plugged in.
I know Android users might not understand this limitation, but there it is.
There's almost no such thing as a passive radio anymore... superheterodyne receivers are the norm now and they contain a local oscillator that can leak back out into the airwaves.
Directions require more than your satellite coordinates. Map services are frequently polling servers for traffic conditions, new tiles for the map, and so on. You'd hope that these can fall back gracefully but I wouldn't put it past them to not. If you activate airplane mode and disable your phone's cellular connection, even if your phone doesn't disable the GPS receiver, directions may stop working.
Works fine on my Android. I regularly lose cellular reception in the mountains, and it continues to work. Sometimes the tiles are low-res, but still readable. I would expect Apple would design around the same contingency, along with poor cellular service along more remote areas of the Interstate.
Android allows you to pre-save areas for offline use also, not sure if Apple does that. I don't have a mobile data plan on my phone, so if I need navigation, I just save the map area before I get off WiFi.
They do, although in my experience Google Maps is better at this. I actually find Apple Maps to be perfectly usable for everything, but always use Google Maps for directions to the boonies if I'm going hiking or something -- it's much better at caching tiles and keeping them around for directions back once I'm out there as well.
Yes offline maps is nice but the infuriating limitation is that it will save map tiles but not locations or areas that I've saved in "My Maps". One would expect a couple of coordinates to require much less storage than a bunch of map tiles...
