Mesh2HRTF Project Folder

Mesh2HRTF Project Folder

After the initial step of setting up your mesh geometry and potential sound sources in Blender, you will set the simulation parameters and export it using the exportMesh2HRTF extension. Doing so will create a project folder at a location specified by you. The project folder contains all information needed to execute and adapt your HRTF simulation as well as do post-processing.

It consists of the following files:

• 3d Model.blend - Blender file that stores the Blender project you exported from
• Info.txt - text file containing general information about the simulation parameters
• Output2HRTF.py - Python script for generating HRTF SOFA files from the simulated data
• Output2HRTF.m - Matlab script for doing the same
• Output2VTK.m - Matlab script for generating VTK files from the simulated data

and directories:

• EvaluationGrids - containing element lists and node locations of the evaluation grids used for simulation
• NumCalc - containing a subdirectory source_X for each sound source in the project.
  • source_X - containing the input file NC.inp for the NumCalc simulation as well as the simulated data once the simulation is run. This includes the file NC.out (a detailed log file of the simulation) as well as the following subdirectories:
    • be.out (see also Output File Structure) - containing a folder be.x for each frequency bin x that was simulated with these files:
      • pBoundary and pEvalGrid containing the pressure and
      • vBoundary and vEvalGrid containing the velocity calculated on the boundary (head mesh defined in the ObjectMeshes folder) and evaluation grid (defined in the EvaluationGrids folder)
    • fe.out - containing a folder fe.x for each frequency bin x that was simulated with the file load specifying the frequency in Hz corresponding to the bin x
• ObjectMeshes - containing element lists and node locations of the geometry (e.g. head) mesh specified in Blender
• Pictures - if selected at export, contains shots from different angles of the geometry in Blender

Try out one of the tutorials to see the project folder yourself.