Evaluation of the weights

lthe weight Pi (i = 1,2,3) relative to each HRTF is obtained calculating the opposite triangle area and dividing it for the total initial triangle area; so we have P1+P2+P3 =1.

P1 = Area(V3,U,V2)/Atot

P2 = Area(V3,U,V1) /Atot

P3 = Area(V1,U,V2) /Atot