#9 Time-Dependent Parametric and Harmonic Templates in Non-Negative Matrix Factorization
Romain Hennequin, Roland Badeau, Bertrand David
This paper presents a new method to decompose musical spectrograms
derived from Non-negative Matrix Factorization (NMF).
This method uses time-varying harmonic templates (atoms) which
are parametric: these atoms correspond to musical notes. Templates
are synthesized from the values of the parameters which are
learnt in an NMF framework. This parameterization permits to accurately
model some musical effects (such as vibrato) which are
inaccurately modeled by NMF
