전자통신동향분석 (Electronics and Telecommunications Trends)

한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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체감형 미디어 서비스를 위한 공간음향 기술 동향

Spatial Audio Technologies for Immersive Media Services

  • 발행 : 2019.06.01
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초록

Although virtual reality technology may not be deemed as having a satisfactory quality for all users, it tends to incite interest because of the expectation that the technology can allow one to experience something that they may never experience in real life. The most important aspect of this indirect experience is the provision of immersive 3D audio and video, which interacts naturally with every action of the user. The immersive audio faithfully reproduces an acoustic scene in a space corresponding to the position and movement of the listener, and this technology is also called spatial audio. In this paper, we briefly introduce the trend of spatial audio technology in view of acquisition, analysis, reproduction, and the concept of MPEG-I audio standard technology, which is being promoted for spatial audio services.

키워드

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그림 1 1차 앰비소닉 마이크로폰 배치

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그림 2 멀티채널 스피커 보정 : (a) 스피커 거리에 따른 보정, (b) 스피커 위치에 따른 보정

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그림 4 MPEG-I 6DoF 오디오 구성

HJTOCM_2019_v34n3_13_f0004.png 이미지

그림 3 다수의 HOA 마이크로폰 인터폴레이션 개념

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