BRT v1.3.0

The BRT library is the core of the Binaural Rendering Toolbox (BRT), a set of software libraries, applications, and definitions aimed as a virtual laboratory for psychoacoustic experimentation. The BRT Library is a header-only C++ library, organised into modules that can be interconnected in different configurations. The library allows the design and rendering of highly realistic and immersive 3D audio, implementing algorithms for audio spatialisation and simulation using headphones.

The BRT library is developed in the framework of the SONICOM project (www.sonicom.eu) and includes the algorithms developed in the 3D Tune-In Toolkit (https://github.com/3DTune-In/3dti_AudioToolkit) in a new open, extensible architecture.

Changelog

• Add virtual ambisonics listener model
• BeRTA allows to load a settings file from command line
• BeRTA allows to select sound source model
• BeRTA shows the orientation of the sound sources in the GUI

Attached files

• BRT Application (BeRTA) v 2.0.0 for Windows x64
• BRT Application (BeRTA) v 2.0.0 for MacOS ARM64
• BeRTA OSC Commands documentation.
• PureData example for BeRTA management (v2.2.0)
• Example of an annotated audio file recorded by BeRTA (see sofa convention)
• Set of Matlab scripts (v1.3.0) to solve the problems of loading SOFA HRTF and Directivity files into the library (see documentation included).
  Overview:
  • Script to know the grid used by the BRT library with the SOFA HRTF and Directivity files, allows to obtain a vector with the grid orientations.
  • Script that checks if a SOFA HRTF or Directivity file will be loaded by the library (and by BeRTA) without errors. It also adds the possibility to optimise them to speed up the loading in the BRT library.
• Documentation that contains the following technical reports:
  • SONICOM_TR3.1_BRT regular grid distribution of points in the sphere used by the BRT.
  • SONICOM_TR3.4_Directivity requirements for the BRT