Hey guys,
I am having this exact same issue with my iphone X.
On top of that the audio level from the ear speaker is very low and it cant be turned on. Everything else works as it should in the phone. I dont know if iphone x has also a microphone in the ear speaker that is causing this problem but i will try cleaning it with compressed air and see if it works.
[quote]microphone works great for phone calls, great with video, great with almost everything, yet when I try use siri, it shows the waves as if there is audio input, but no real audio is getting in.[/quote]