1
Classify the script
Mark names, contact details, client material, credentials and unpublished work before using text to speech. Replace unnecessary identifiers with placeholders. A harmless sample sentence can help you assess a voice without exposing the document you ultimately want to hear.
2
Check the actual provider
Open the privacy policy and terms for the service you will use, not just a link in a forum post. Look for statements about storage, deletion, sharing and whether submitted text may be used to improve systems. If those answers are unclear, avoid entering confidential material.
3
Review the result before sharing
Listen for mispronounced names, incorrect numbers and unintended changes in emphasis. If the speech imitates a real person, confirm you have permission to use that voice. Text to speech output can sound polished while still misrepresenting the script or its speaker.