Abstract
In human-robot interaction, natural and intuitive communication between robot and human is one of the most important research topics. Emotion plays a crucial role to make natural and social interactions. Research has focused more on robots’ appearances and facial emotional expressions, but little research has investigated robots’ voices and their mixed effects with robot types and different emotions for users to perceive robots’ emotional states. In this study, anthropomorphic and zoomorphic robots, four different voice types, and seven different emotional voices were used as mixed factors to discuss how these influence users’ perception on robots’ emotional expression and other characteristics. Sixteen participants were asked to read fairy tales to robots and determine robots’ emotional states when the robots verbally responded. Overall, the anthropomorphic robot (Nao) was preferred over the zoomorphic robot (Pleo), but this appearance did not influence emotion recognition accuracy or other robot characteristics. Participants showed lower accuracy in recognizing negative emotions with high arousal: anger, fear, and disgust. TTS was rated lower than other human voices in all robot characteristics, such as warmth, honesty, trustworthiness, and naturalness. Implications and design directions are discussed with the results.
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Ko, S. et al. (2020). The Effects of Robot Appearances, Voice Types, and Emotions on Emotion Perception Accuracy and Subjective Perception on Robots. In: Stephanidis, C., Kurosu, M., Degen, H., Reinerman-Jones, L. (eds) HCI International 2020 - Late Breaking Papers: Multimodality and Intelligence. HCII 2020. Lecture Notes in Computer Science(), vol 12424. Springer, Cham. https://doi.org/10.1007/978-3-030-60117-1_13
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