HRHATRAC Algorithm for Spectral Line Tracking of Musical Signals

Bertrand David (1) , Roland Badeau (1) , Gael Richard (1)

1 LTCI - Laboratoire Traitement et Communication de l'Information

HRHATRAC combines the last improvements regarding the fast subspace tracking algorithms with a gradient update for adapting the signal poles estimates. It leads to a line spectral tracker which is able to robustly estimate the frequencies, even in a noisy context, when the lines are close to each other and when a modulation occurs. HRATRAC is also successfully applied in this paper to a piano note recording.

Domains: Physics [physics]; Mechanics [physics]; Acoustics [physics.class-ph]; Engineering Sciences [physics]; Acoustics [physics.class-ph]

Bertrand David, Roland Badeau, Gael Richard. HRHATRAC Algorithm for Spectral Line Tracking of Musical Signals. International Conference on Acoustics, Speech, and Signal Processing ICASSP'06, 2006, Toulouse, France. pp.45-48. ⟨hal-00479785⟩