SpeechSpeech - Speech is text-to-speech produced by the API. This will have a voice associated with it as well - such as Joanna or Brian API endpoints allow you to create text-to-speech (audio files) on API.audio. Speech audio files are created from script objects (see Script API). ScriptScript - A script is our 'unit' of audio. Consider this like your story. Scripts can have many sections within them.