Remarkable, I spoke spanish on the training audio without realising. Then every two options were one with a latino-accented english and one with an indian-accented english
Yes, you could be wrong and you are. It's a law proposal, not a law in any way.
I also guess that it's a bit more complicated than that, but I won't make any assumptions before I read it myself instead of what a Spanish TV/newspaper can tell me as they are always super biased. I suggest you to do the same.
I created a similar app using mac's afplay 11 (yikes) years ago https://github.com/andion/gramola
I don't use it anymore but at the time it made my battery last longer, you can see a battery consumption comparison on the repo.