What question did this study set out to answer?

The central aim is to explore how synthesized speech can convey emotions for improved user interfaces.

Exploring expressivity and emotion with artificial voice and speech technologies

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Randomized trial investigates emotional expression in artificial voice technologies, suggesting enhanced design for user interfaces.

The central aim is to explore how synthesized speech can convey emotions for improved user interfaces.
Developed software linking a TTS synthesizer with an ASR engine for a functional chatbot.
Used markup tags to specify emotional parameters in audio-voice signals.
Applied post-processing techniques to modulate the emotional quality of synthesized speech.
Identified artistic and psychological implications of artificial speech emotions.
Proposed HCI tools for enhancing user experience in artificial communication systems.
Pointed towards an interdisciplinary ontology for understanding artificial voices.

Pauletto et al. (2013) studied this question.

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