On the Design of the Binaural Rendering Library for Eclipsa Audio Immersive Audio Container

Rudzki T, Kearney G, Skoglund J. On the Design of the Binaural Rendering Library for Eclipsa Audio Immersive Audio Container. In: Express Paper. Audio Engineering Society; 2025. Paper 315. Available from: https://aes.org/publications/elibrary-page/?id=22866

@inproceedings{Rudzki2025_22866,
  author = {Rudzki, Tomasz and Kearney, Gavin and Skoglund, Jan},
  title = {{On the Design of the Binaural Rendering Library for Eclipsa Audio Immersive Audio Container}},
  note = {Paper 315},
  year = {2025},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22866}
}

TY  - CPAPER
TI  - On the Design of the Binaural Rendering Library for Eclipsa Audio Immersive Audio Container
AU  - Rudzki, Tomasz
AU  - Kearney, Gavin
AU  - Skoglund, Jan
M1  - Paper 315
PY  - 2025
DA  - 2025/05/12
UR  - https://aes.org/publications/elibrary-page/?id=22866
PB  - Audio Engineering Society
LA  - en
AB  - Immersive Audio Media and Formats (IAMF), also known as Eclipsa Audio, is an open-source audio container developed to accommodate multichannel and scene-based audio formats. Headphone-based delivery of IAMF audio requires efficient binaural rendering. This paper introduces the Open Binaural Renderer (OBR), which is designed to render IAMF audio. It discusses the core rendering algorithm, the binaural filter design process as well as real-time implementation of the renderer in a form of an open-source C++ rendering library. Designed for multi-platform compatibility, the renderer incorporates a novel approach to binaural audio processing, leveraging a combination of spherical harmonic (SH) based virtual listening room model and anechoic binaural filters. Through its design, the IAMF binaural renderer provides a robust solution for delivering high-quality immersive audio across diverse platforms and applications.
ER  -