최근 세계적인 경제 위축에 따라 메타버스 관련 산업이 동반위축되고 있는 상황이다. 하지만, 코로나19 사태를 시발점으로 원격 협업과 소셜미디어 서비스에 대한 경험 확산과 편의성이 입증됨으로써, 메타버스의 잠재적인 발전 가능성에 대해서는 부정하는 사람들이 많지 않다. 이에 MPEG에서는 메타버스와 같은 VR/AR 응용 분야를 위하여 몰입형 공간음향 기술을 개발하고 있으며, 여전히 메타버스를 가장 중요한 어플리케이션으로 생각하고 있다. 현재 MPEG-I Immersive Audio 표준화는 WD(Working Draft) 단계에 있으며, CE (Core Experiment)를 통하여 기술을 개선하고 있다. 본고에서는 이러한 상황을 고려하여 메타버스 음향공간의 특징과 이러한 음향공간에서의 공간음향 표현을 위한 MPEG-I Immersive Audio 표준기술 동향에 대하여 분석하며, 향후 메타버스 음향공간 표현을 위하여 풀어야 할 문제들과 함께 메타버스 음향공간 표현 기술의 전망에 대하여 기술한다.
KSP Keywords
MPEG-I, immersive audio
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