Evaluation of avatar and voice transform in programming e-learning lectures

Hsieh, Rex; Sato, Hisashi

doi:10.1007/s12193-020-00349-5

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…Students showed higher likeability for the female-anime avatar but performed higher when instructors' own face delivered lectures. Although these studies show that the voice of an avatar plays a role in students' perception and performance, a general limitation is the poor quality of voice morphing in these studies [58,97].…”

Section: Avatarmentioning

confidence: 99%

Audio Matters Too: How Audial Avatar Customization Enhances Visual Avatar Customization

Kao,

Ratan,

Mousas

et al. 2022

Preprint

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Avatar customization is known to positively affect crucial outcomes in numerous domains. However, it is unknown whether audial customization can confer the same benefits as visual customization. We conducted a preregistered 2 x 2 (visual choice vs. visual assignment x audial choice vs. audial assignment) study in a Java programming game. Participants with visual choice experienced higher avatar identification and autonomy. Participants with audial choice experienced higher avatar identification and autonomy, but only within the group of participants who had visual choice available. Visual choice led to an increase in time spent, and indirectly led to increases in intrinsic motivation, immersion, time spent, future play motivation, and likelihood of game recommendation. Audial choice moderated the majority of these effects. Our results suggest that audial customization plays an important enhancing role vis-à-vis visual customization. However, audial customization appears to have a weaker effect compared to visual customization. We discuss the implications for avatar customization more generally across digital applications. CCS CONCEPTS• Human-centered computing → Empirical studies in HCI.

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Section: Avatarmentioning

confidence: 99%

Audio Matters Too: How Audial Avatar Customization Enhances Visual Avatar Customization

Kao,

Ratan,

Mousas

et al. 2022

Preprint

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“…Advances in artificial intelligence (AI) have made it possible to create virtual instructors with a high quality of voice and appearance (Craig & Schroeder, 2017; Domagk, 2010). Research shows that a virtual instructor can achieve the same levels of facial and vocal expression as a human instructor (i.e., a human; Hsieh & Sato, 2021; Lawson et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The influences of a virtual instructor's voice and appearance on learning from video lectures

Deng

Wang

et al. 2022

Computer Assisted Learning

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Background: Video lectures which include the instructor's presence are becoming increasingly popular. Presenting a real human does, however, entail higher financial and time costs in making videos, and one innovative approach to reduce costs has been to generate a virtual speaking instructor.Objectives: The current study examined whether the use of a virtual instructor in video lectures would facilitate learning as well as a human instructor, and whether manipulating the virtual instructor's characteristics (i.e., voice and appearance) might optimize the effectiveness of the virtual instructor.Methods: Our study set four conditions. In the control condition, students watched a human instructor. In the experiment conditions, students watched one of (a) a virtual instructor which used the human instructor's voice and an AI image, (b) a virtual instructor which spoke in an AI voice with an AI image made to speak using text-tospeech and lip synthesis techniques, or (c) a virtual instructor with used an AI voice and an AI likable-image of an instructor. Results and Conclusions:The AI likable instructor condition had a significant positive effect on students' learning performance and motivation, without decreasing the attention students paid to the learning materials.Implications: Our findings suggest that instructional video designers can make use of AI voices and AI images of likable humans as instructors to motivate students and enhance their learning performance.

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