Ssml Based Prosody And Speech Control With Fine Grained Markup

via “dialogue-optimized text-to-speech synthesis with prosody control”

A generative speech model for daily dialogue.

Unique: Uses a GPT-based text refinement stage that automatically injects prosody markers (laughter, pauses, interjections) into text before audio generation, rather than relying solely on acoustic models to infer prosody from raw text. This two-stage approach (text→refined text with markers→audio codes→waveform) enables dialogue-specific expressiveness that generic TTS models lack.

vs others: More natural and expressive for conversational speech than Google Cloud TTS or Azure Speech Services because it explicitly models dialogue prosody through text refinement rather than inferring it purely from acoustic patterns, and it's open-source with no API rate limits unlike commercial TTS services.