High Fidelity's Text to Speech app relies on Google's Text to Speech and Translate APIs.
Google Translate API: Data Usage
When you use the Text to Speech app to automatically translate text, you are sending a copy of
your input text to Google's servers. According to Google's Data Usage FAQ on
the Translate API support page,
that text is stored on Google servers for a maximum of 14 days.
Google Text to Speech API: Data Usage
When you use the Text to Speech app to speak input text (whether or not it is automatically
translated), you are sending a copy of
your input text to Google's servers. Google does not publish a Data Usage FAQ associated with the
Text to Speech API.
Here's a link to Google's Cloud
Data privacy policy.
High Fidelity APIs
When you use the Text to Speech app to speak or translate input text, you are sending a copy of your
input text to High Fidelity's
servers. High Fidelity does not store a copy of this text for any reason. High Fidelity does briefly
store a copy of the speech audio file associated
with your input text so that High Fidelity Interface may play back that speech audio file. That file
is deleted 60 seconds after it is generated.