Speech Synthesis

The technology that converts text into spoken audio. In 2026, ElevenLabs Multilingual v3 leads on quality, with Deepgram Aura, Google Cloud TTS, and Sarvam.ai as alternatives. Voice cloning lets businesses create a branded voice (e.g., the founder's voice) that AI agents use across customer interactions. Quality threshold: callers should not detect AI in the first 90 seconds.