Acoustic Properties Database

[mahnoor-fatima-saad]

Hi

I am wondering how the acoustic parameters hard-coded in the mp3d_material_config.json file are derived. Is there a formula used to calculate these or are they measured from within habitat? If they are measured from within habitat, how is that done exactly?

I have read the soundspaces 2.0 paper and still don't really understand how these coefficients are derived.

If I want to create a new material, how would I derive the absorption, transmission and scattering coefficients? The paper states the shoebox room APIs that I can use. Can you please elaborate on where I can find these and how to use them?

TIA

[ChanganVR]

These acoustic parameters are not derived but rather looked up from a database we used internally at Facebook for audio rendering. Adding a new material would require adding proper absorption, transmission, and scattering coefficients to the file.