Visualization of (a) RMS and (b), (c), (d) SI-SDR for audio predicted in a discrete set of equiangularly distributed directions (100° × 50°) by several methods. The predictions are made using a first order Ambisonics mixture from the Musdb18 test set in anechoic conditions. The red dots correspond to the location of the sources. Corresponding listening examples can be found online [21].