Draft preprint - June 2026
What TTS Throws Away
A taxonomy and exploratory evaluation of paralinguistic script controls in modern text-to-speech systems.
Claim Boundary
Modern TTS engines already start from a high expressive baseline. In this exploratory setup, paralinguistic script markup behaves as a residual control layer rather than the dominant source of naturalness.
What It Contributes
The draft introduces a ten-axis taxonomy, a five content-register matrix, a script-stripping ablation, a model-judge comparison, a prior-work gap map, and an appendix with the operational prompts used in the study.