The definition of uniform distribution is different between the paper and code

[maoxin7676]

• The eq (70 ) in "Lightweight and Optimized Sound Source Localization and Tracking Methods for Open and Closed Microphone Array Configurations" caculates the uniform distribution p = K_hat/(4piK) , where K_hat denotes the number of points scanned, and K the total number of points needed to discretize the entire sphere。
• The line 153 in mod_sst.c is diffuse_cst = 1.0f / (4.0f M_PI ((float) nPointsActive) / ((float) spatialindexes->nPoints)), the value of diffuse_cst is large than 1, i think it should be diffuse_cst = (((float)nPointsActive) / (4.0f M_PI (float)spatialindexes->nPoints));
• Please help confirm whether the above description is correct

[FrancoisGrondin]

Yes you are right, this seems to be a mistake in the code. It's probably absorbed by some other hand-tuned parameters found empirically, but should be changed to what you said to match the equations in the paper.