Towards emotional speech synthesis: a rule based approach.
Enrico Zovato, Alberto Pacchiotti, Silvia Quazza, Stefano Sandri · SSW · 2004
This note describes a framework used to simulate three basic emotional styles by means of prosodic transplantation techniques applied to the output of a corpus based speech synthesis system. The target pitch profiles together with duration and energy constraints have been obtained applying simple rules inferred from the analysis of a small corpus, recorded in three emotional styles. Results of perceptual tests show that styles are well recognized even if the acoustical quality, in some cases, degrades.