Virtual Gain for Audio Windows

  • Authors:
  • Michael Cohen;Nobuo Koizumi

  • Affiliations:
  • Spatial Media Group, Human Interface Lab, University of Aizu 965-8580, Japan mcohen@u-aizu.ac.jp;Lab for Information Technology, NTT DATA Communication, Systems Corp., 66-2 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 210, Japan

  • Venue:
  • Presence: Teleoperators and Virtual Environments
  • Year:
  • 1998

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Abstract

Audio windowing is a front-end, or user interface, to an audio system with a real-time spatial sound back end. Complementing directionalization by a digital signal processor (DSP), gain adjustment is used to control the volume of the various mixels ([sound] mixing elements). Virtual gain can be synthesized from components derived from collective iconic size, mutual distance, orientation and directivity, and selectively enabled according to room-wise partitioning of sources across sinks. This paper describes a derivation of virtual gain, and outlines the deployment of these expressions in an audio windowing system.