system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 How does text to speech work? Do they get the people voicing the "speech part" to say a lot of words or is it a different way all together?
gpt
Depends of how advanced the text to speech is. In the early days of text to speech they only recorded sounds like "Ch" and "ee" combining them to make the words, The result was sloppy.  These days they voice whole words by getting the voice actors to read whole sentences, like from a book and put that into an AI. The voice actor for Alexa spent weeks to months reading out loud and recording it. The voice actors try to read with little to no emotion yet still fluid speech so when the AI does need to chop up a word it can without it sounding strange.