What’s more interesting to me is that she’s actually reading the exact lines. Unlike many systems that have someone speak a collection of phrases so they can cull off various sounds and syllables and recreate words as needed. Such as what Apple’s Siri does. 

She is recording paragraph snippets of copy in script form.  She then just has to name the recordings appropriately and upload them.  I assume hey are reviewed and changes are made.  Then those pieces are looped and played as needed by an automated computer announcement system.  

Must be nice to work at home, she probably makes some good money doing the work. Certainly has expensive recording gear.