Well. I also noticed ads where I had the feeling that a previous conversation might have been listened to. No idea how they achieve this. Sadly this isn't a _undeniable proof_ . There a still plenty ways for Google to achieve this with only metadata.

But it's atleast evidence that their ad tracking is too effective regardless of the methods they use.
@[email protected] How they can do that with metadata. The phone needs to capture audio and send it to Google for analysis. I don't think it's possible to do this locally and then only send in results like "language X detected". Even if that's the case - this is still invasion of privacy. Maybe I am teaching my kids a forbidden language at home under an opressive regime that tries to kill my native culture?