Immersive audio system based on 2.5D local sound field synthesis using high-speed 1-bit signal

Kakeru Kurokawa, Yusuke Ikeda, Naotoshi Osaka, Yasuhiro Oikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To a achieve highly immersive auditory experience, physically accurate sound field reproduction is required. Many local sound field synthesis (SFS) methods have been proposed to accurately reproduce the sound field around a listener. However, the narrow listening area in local SFS prevents the listener from moving freely. In this study, we developed a dynamic 2.5-dimensional local SFS system, which moves the listening area to follow the movements of the listener using a body-tracking camera. For the evaluation the proposed system, the azimuth localization accuracy was investigated by measuring interaural level differences in an anechoic chamber. The results show that when the distance between the listener and the virtual point source is 1.0 m, the proposed system has a small azimuthal localization error compared with conventional SFS.

Original languageEnglish
Title of host publicationInternational Workshop on Advanced Imaging Technology, IWAIT 2021
EditorsMasayuki Nakajima, Jae-Gon Kim, Wen-Nung Lie, Qian Kemao
PublisherSPIE
ISBN (Electronic)9781510643642
DOIs
Publication statusPublished - 2021
Event2021 International Workshop on Advanced Imaging Technology, IWAIT 2021 - Kagoshima, Virtual, Japan
Duration: 2021 Jan 52021 Jan 6

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11766
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2021 International Workshop on Advanced Imaging Technology, IWAIT 2021
CountryJapan
CityKagoshima, Virtual
Period21/1/521/1/6

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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