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Object-based Audio Reproduction and the Audio Scene Description Format

  • Matthias Geier (a1), Jens Ahrens (a1) and Sascha Spors (a1)
Abstract

The introduction of new techniques for audio reproduction such as HRTF-based technology, wave field synthesis and higher-order Ambisonics is accompanied by a paradigm shift from channel-based to object-based transmission and storage of spatial audio. Not only is the separate coding of source signal and source location more efficient considering the number of channels used for reproduction by large loudspeaker arrays, it also opens up new options for a user-controlled interactive sound field design. This article describes the need for a common exchange format for object-based audio scenes, reviews some existing formats with potential to meet some of the requirements and finally introduces a new format called Audio Scene Description Format (ASDF) and presents the SoundScape Renderer, an audio reproduction software which implements a draft version of the ASDF.

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Organised Sound
  • ISSN: 1355-7718
  • EISSN: 1469-8153
  • URL: /core/journals/organised-sound
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