Wizard of Oz Evaluation of a Dialogue with Communicator System in Chile

"Results of Wizard of Oz experiments with Communicator system in Chile are presented in this paper. The task was to book a domestic flight and was used to evaluate the user response to this type of system and, more specifically, to a diphone TTS implemented with speech samples from a Chilean speaker. Two synthesizers were employed, with and without pitch contour. The results suggest that the overall user attitude toward the system was positive. Moreover, a proper pitch curve seems to improve the intelligibility of the synthesized speech and_ the response to the system."