Voice to text - why is it only sending an audio file?

[phazesix]

I'm trying to do voice to text. There is a microphone on the upper right hand side where you enter text. When I press it, it only allows me to record an audio file.Then it proceeds to send it directly unless I swipe left without taking my finger off the mic. I don't want to send an audio file, I want to dictate verbally & have it changed to written text. How do I do that?

Thanks.