A Synthetic Voice is an AI-generated voice produced by speech-synthesis (text-to-speech) models to create natural, human-like speech without recording a human speaker. Modern synthetic voices use neural TTS and voice-cloning models to reproduce tone, emotion, and cadence, and can speak in many languages and styles. They can be built from stock voices or cloned from a short sample of a real speaker (with consent).
Synthetic voices are what give AI voice agents, virtual assistants, IVRs, audiobooks, and dubbing their spoken output. Realistic prosody and low latency are essential for conversations that don't feel robotic. Buyers compare naturalness, expressiveness, language coverage, streaming latency, and voice-cloning and licensing terms.