Universal Spatial Audio Transcoder

Sagasti A, Scaini D, Arteaga D. Universal Spatial Audio Transcoder. In: Convention Paper. Audio Engineering Society; 2024. Paper 10704. Available from: https://aes.org/publications/elibrary-page/?id=22517

@inproceedings{Sagasti2024_22517,
  author = {Sagasti, Amaia and Scaini, Davide and Arteaga, Daniel},
  title = {{Universal Spatial Audio Transcoder}},
  note = {Paper 10704},
  year = {2024},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22517}
}

TY  - CPAPER
TI  - Universal Spatial Audio Transcoder
AU  - Sagasti, Amaia
AU  - Scaini, Davide
AU  - Arteaga, Daniel
M1  - Paper 10704
PY  - 2024
DA  - 2024/06/06
UR  - https://aes.org/publications/elibrary-page/?id=22517
PB  - Audio Engineering Society
LA  - en
AB  - This paper addresses the challenges associated with both the conversion between different spatial audio formats and the decoding of a spatial audio format to a specific loudspeaker layout. Existing approaches often rely on layout remapping tools, which may not guarantee optimal conversion from a psychoacoustic perspective. To overcome these challenges, we present the Universal Spatial Audio Transcoder (USAT) method and its corresponding open source implementation. USAT generates an optimal decoder or transcoder for any input spatial audio format, adapting it to any output format or 2D/3D loudspeaker configuration. Drawing upon optimization techniques based on psychoacoustic principles, the algorithm maximizes the preservation of spatial information. We present examples of the decoding and transcoding of several audio formats, and show that USAT approach is advantageous compared to the most common methods in the field.
ER  -