it's very unlikely to come up with a random name and ask if there's a skill for it and find one... 😛
maybe you want to check which skills are available and try to think if there's any close to what you require...
Navigate to Now Assist Admin > select technology (e.g. ITSM) and see the list of available AI skills:
But as you mentioned voice, what exactly do you mean? Doc to voice, you want to upload a document and that would be converted to voice or what's the use case??
@Vedavalli Perhaps you can get better answers if you rephrase your question..  
