Development of a 4-pi sampling reverberator, VSVerb. - Application to VR production

Masataka Nakahara, Yasuhiko Nagatomo, Akira Omoto

Research output: Contribution to conferencePaperpeer-review

Abstract

The authors develop a 4-pi sampling reverberator, named “VSVerb,” which restores a 4-pi reverberant field by using information of virtual sound sources which are captured in a target space. Acoustical properties of virtual sound sources are detected from sound intensities which are calculated from impulse responses measured by an Ambisonic A-format microphone. Spatial information of the virtual sound sources is translated into time responses, then the 4-pi spatial reverberation is obtained. Several schemes for detecting accurate acoustic properties of virtual sound sources have been developed so far, and their practicalities have been examined under various playback environments, e.g, 5.1.4ch, 7.1.4ch, 22.2ch, 24ch and 40ch. This time, the authors introduce an application example for implementation of the VSVerb into VR content production. Key features are 1) Binaural rendering by using an individual HRIR which is given as an AES69 sofa format and 2) Dynamic processing of changing reverberation with chasing listener’s movement.

Original languageEnglish
Publication statusPublished - 2020
Event149th Audio Engineering Society Convention 2020, AES 2020 - Virtual, Online
Duration: Oct 27 2020Oct 30 2020

Conference

Conference149th Audio Engineering Society Convention 2020, AES 2020
CityVirtual, Online
Period10/27/2010/30/20

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Acoustics and Ultrasonics

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