

You could easily process the audio and filter in on the device and just send the transcribed parts that match your filters for further processing. No need to send a constant audio stream. Eventually it would show up in the battery usage but things like the google song recognition also heavily use the mic and process audio and it doesn’t show up as heavy as you would expect.
As I know we have no other information source about hamas using civilian infrastructure like hospitals as military bases than the IDF. That’s because no external journalists are allowed in gaza by the IDF. And in the beginning exactly this IDF also claimed they don’t target hospitals and it was a hamas rocket that hit the biggest hospital of gaza. Now there is not a single hospital left. So maybe we shouldn’t believe this kind of information. Also there are other methods than bombing the whole area if the enemy is really using civilian infrastructure as military bases. So it’s still on the attacker if civilians die. Especially if the attacker has massive military capacities and options for other methods like in the case of the IDF.