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The Effects of Voice Pitch on Perceptions of Robots
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While previous research in human-robot interaction (HRI) has shown people respond similarly to vocal cues in robot speech as they do with human speech, there has been minimal research into the effects of voice pitch. This study investigates whether vocal pitch in robot speech will evoke stereotypical evaluations of the robot speaker. To explore this, multiple voices were synthesized from various text-to-speech applications and then manipulated to have a raised or lowered pitch. Participants will be asked to rate these voices on various scales such as competence, trustworthiness, and likeability. We expect our results to conform with the current literature on human voice pitch and encourage further research on the effects of the voice on HRI.