Fig. 4From: Blind source separation with optimal transport non-negative matrix factorizationPerceptive quality score (personal voice model). Average and standard deviation of PEMO scores of reconstructed isolated voices, where the model is learned using separate training data for each voice with optimal transport (dark blue), Kullback-Leibler (light blue), Itakura-Saito (green), or Euclidean (yellow) NMFBack to article page