In my home country (Hungary) it is mandatory if you leave your home more than 500 meters and as far as I know, most European countries have similar rules.
I use Toggl [1] exactly for this. [1] https://toggl.com/
dont know anything about the sound systems of aircrafts, but why can’t they switch off each sound system one by one and see which one causes it and then see the possible inputs to the one where the sound is played? I…
In my home country (Hungary) it is mandatory if you leave your home more than 500 meters and as far as I know, most European countries have similar rules.
I use Toggl [1] exactly for this. [1] https://toggl.com/
dont know anything about the sound systems of aircrafts, but why can’t they switch off each sound system one by one and see which one causes it and then see the possible inputs to the one where the sound is played? I…