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가상현실 기반 시나리오의 정서 조건에 대한 음향구현 방식이 가상실재감에 미치는 영향

The Effects of Sound with Emotional Conditions on Virtual Presence in the Virtual Reality-Based Scenario

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주제분류교육학

초록

이 연구의 목적은 가상현실 기반 시나리오의 음향구현 방식을 세 가지 정서 조건(슬픔, 공포, 기쁨)에 적용했을 때, 학습자의 가상실재감에 미치는 영향을 확인하기 위한 것이다. 이를 위하여 가장 기본적인 정서 조건에 맞게 실험조건을 구현했다. 이 연구를 통하여 다양한 정서조건 시나리오에 따라서 가상실재감을 촉진할 수 있는 음향구현 방식을 확인할 수 있을 것으로 기대된다. 이 연구의 대상은 대학생 84명(남학생=29명, 여학생=55명)으로 음향에 따른 세 집단(배경음악, 주변음향, 통제집단)에 28명씩 임의 배정되었다. 이들에게는 세 조건(슬픔, 공포, 기쁨)의 정서적 시나리오가 차례로 제시되었다. 배경음악집단에는 각 시나리오의 특징에 맞는 영화음악이 제공되었다. 주변음향집단에는 일반적으로 들을 수 있는 교실소음이 제공되었다. 통제집단에는 음향효과가 제시되지 않았다. 이 연구의 종속변수는 가상실재감이었으며, 공간실재감, 몰두감, 사실성으로 구성되었다. 시나리오가 끝날 때마다 가상실재감이 측정되었다. 이 연구는 1요인 반복설계에 의한 다변량분산분석이 적용되었다. 연구결과에 따르면 음향에 따른 집단에서 유의미한 차이가 나타났으며, 정서 조건에 따라서도 유의한 차이가 나타났다. 특히, 음향과 정서 조건에서 유의미한 상호작용이 나타났다. 결론적으로 주변음향을 적용하는 것이 배경음악을 적용하는 것보다 가상실재감을 지각하는 데 더 효과적인 것으로 나타났다. 연구결과를 바탕으로 시나리오기반 학습을 위한 가상현실 시뮬레이션 설계방법에 대해서 논의했다.

Abstract

This study aims to analyze the effect of the sound and emotional conditions of the scenario on the formation of virtual presence for learners in scenario-based learning. The participants of this study were 84 university students (male students = 29, female students = 55), and we randomly assigned them to three groups (background music, ambient sound, and control group). Sadness, fear, and joy were the emotional conditions. We gave a movie soundtrack fit for each scenario in the background music group. For the ambient sound situation, we used the classroom noise of a recession. No sound was provided to the control group. The dependent variable in this study was the virtual presence and was composed of spatial presence, immersion, and realism. We measured the virtual presence at the end of each scenario. The study results indicated that types of sound had a significant impact on the virtual presence. We found that applying ambient sound is more effective in perceiving virtual reality than background music. There was a significant interaction effect between sound and emotional conditions. The results emphasized that background music was less effective than ambient noise to the virtual presence. We discussed some design considerations for scenario-based learning to improve the virtual presence.

참고문헌 (55)

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