What these voices sound like
Dora is a neutral female voice with a Castilian register: clear, unhurried, at home in e-learning and brand narration. Alex is her male counterpart, a shade lower and slower, good for documentaries and corporate explainers. Both come from the Apache-licensed Kokoro voice set and read European Spanish with the distinción intact — “cerveza” with the θ sound, not “serveza”. Preview with a sentence that contains a c or z before you commit.