Generalization of an Active Set Newton Algorithm with Alpha-Beta divergences for audio separation

This article considers the decomposition of a nonnegative signal into a non-negative linear combination of the contributions of pre-specified atomic units, which are also nonnegative. This model, referred as compositional model, is evident in the time-frequency characterisations of audio signals, where the sound can be viewed as a blending of spectral patterns of the component sounds that are pres...