Issues with Left/Right Ear Audio in the Final Generated HRIR File

[feitian109]

According to the tutorials on GitHub Wiki and YouTube, I used finalize_hrtf_simulation.py to merge the left and right ear data and generated the final HRIR file HRIR_ARI_48000.sofa. However, when using this file, I found that the 7.1 channel audio rendering has obvious directional errors—whether it's Front Right or Right, the sound almost entirely comes from the left side.

I examined the plot data generated during the final merging process (HRIR_ARI_48000_2D.pdf) and found significant anomalies:

The plot data in HRIR_Default_48000_2D.pdf looks even stranger:

From the plot analysis, even for sounds coming from the right side, the left ear's audio level is higher.

I suspect the problem may lie in the following aspects:

• Issues with the initial model creation, or errors in some Blender settings before export (I mainly followed the YouTube video tutorials)
• Incorrect settings when exporting the Mesh2HRTF project from Blender (according to the GitHub Wiki, I tried manual export)
• Errors when running finalize_hrtf_simulation.py (I placed the left and right ear folders next to the script and ran it directly)

I am using the latest versions of Any2HRTF/Mesh2HRTF (v1.3.0) from GitHub and mesh2hrtf-tools (ca77ef) from SourceForge. I am using Blender 5.1. And I have attached my Blender project, simulation results, and merged results to this post. I would greatly appreciate it if anyone could provide assistance.

Attachments (large file cannot be uploaded by Github):
https://drive.google.com/file/d/12d-G36LYi0HCvsxEBEWN4b5BE_VEHgsX/view?usp=drive_link

[feitian109]

I found some issues with the exported left/right ear project files. It seems to have exported the reference head from the sample file 3d_Model_uniform.blend (a mesh named "Reference") as the calculation object. I'm not sure whether this is due to my export settings or a problem with the Blender export plugin. Currently conducting further tests.

[feitian109]

Sorry, I overlooked the step in the wiki about renaming the Reference model. (https://github.com/Any2HRTF/Mesh2HRTF/wiki/Basic_Project_export#alt-1-default-vibrating-element-source) I can now confirm this was my own mistake.