aspcol.soundfieldcontrol.sum_pow_of_mat

aspcol.soundfieldcontrol.sum_pow_of_mat(bf_mat)

bf_mat is the beamformer matrix obtained from semidefinite relaxation,

of shape (num_freqs, num_zones, num_sources, num_sources)

return the sum of traces for each frequency, so an array of shape

(num_freqs,)