Brain-inspired model for early vocal learning and correspondence matching using free-energy optimization
Fig 6
Reconstruction analysis after free-energy optimization.
In a), density probability distribution of the Striatal units with respect to their prediction error level. In b), density probability distribution of reconstruction error of MFCC vectors by the GP layer. For most of the neurons within the STR layer, the optimization process makes it possible to construct MFCC vectors close to the real ones from the audio database. The error reconstruction follows a central field distribution centered at 0.05 and standard deviation ± 0.05.