At first I was thinking a software issue, but the usual restore, setup as new and all that didn't fix it so maybe hardware. So now, are there two microphones in this thing? I can talk just fine on the phone. Went to record a video and no sound. Siri, nothing; voice to text, nothing again. It's frustrating because I used Siri to imitate phone calls all the time. I also like to send voice messages and a workout challenge group requires videos submissions once a week. What was a minor annoyance has now become a pretty big problem.