Get your script ready.

Script considerations:

1. Target Language 
Read from a script that will be consistent with the vernacular of the use.

2. Relevant
Include words in your script that will be used. 
For example, if you would like to use it for medical purposes, read from a script that will include common phrases and vocabulary from that field. 

3. Quiet
Make sure your script is digital either on an iPad or a Kindle reader so the sound of the page turning and/or mouse clicks will not be picked up by the mic while recording.
Any extraneous noises while speaking will have to be cut since the synthesis production requires a pure sound.