Hume AI

Hume AI is a voice AI platform designed to create realistic, emotionally expressive speech and conversational experiences. Its primary purpose is to help developers, creators, and enterprises build applications that not only sound natural, but also recognize and respond to human emotions in real time. By combining advanced text-to-speech, speech-to-speech, and multimodal emotion understanding, Hume AI enables more human-centered interactions across digital products and services.

The platform’s Octave product delivers text-to-speech with emotional intelligence, allowing users to generate expressive, natural-sounding audio in a consistent voice across 100+ languages with native-level pronunciation. Developers can add detailed “acting instructions” to control delivery—such as whispering, emphasizing specific phrases, or pausing for effect—so the output matches the intended tone and context. The Empathic Voice Interface enables real-time, speech-to-speech conversations where the AI listens to vocal cues and responds with appropriate emotional nuance. Additionally, the Expression Measurement suite analyzes emotions from both face and voice, providing granular, scalable insights into how users feel during interactions.