The process is called elocution.
Explanation:
The process of elocution in general would involve a few of these things that are anticipated by the reasons one would have for communicating and the way it actually gets communicated to the people intended:
It is basically about
-- What you want to say
_ How you want to say what you want to say in that what medium and what manner to use
-- Sending a message in that how is it that one would want to get their message across.