Ecole d'ingénieur et centre de recherche en Sciences du numérique

Multi-channel mono-path periodic signal extraction with global amplitude and phase modulation for music signal decomposition

Triki, Mahdi; Slock, Dirk T M

SSP 2005, 13 th IEEE Workshop on Statistical Signal Processing, July 17-20, 2005, Bordeaux, France

Mention honorifique pour Best student paper award

A key building block in music transcription and indexing operations is the decomposition of the music signal into notes. We model a note signal as a periodic signal with (slow) global variation of amplitude (reflecting attack, sustain, decay) and frequency (limited time warping). Also voiced speech admits such a representation. The bandlimited variation of global amplitude and frequency gets expressed through a subsampled representation and parameterization of the corresponding signals. The periodic signal is assumed to arrive at a set of sensors with different amplitude and delay. Assuming additive white Gaussian noise, a Maximum Likelihood approach is proposed for the estimation of the model parameters and the optimization is performed in an iterative (cyclic) fashion that leads to a sequence of simple least-squares problems. Particular attention is paid to the estimation of the basic periodic signal, which can have a non-integer period. Simulation results reveal that the proposed approach allows to extract such signals accurately from an underdetermined mixture of several, using iterated successive interference cancellation.

Document Doi Bibtex

Titre:Multi-channel mono-path periodic signal extraction with global amplitude and phase modulation for music signal decomposition
Type:Conférence
Langue:English
Ville:Bordeaux
Pays:FRANCE
Date:
Département:Systèmes de Communication
Eurecom ref:1714
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Bibtex: @inproceedings{EURECOM+1714, doi = {http://dx.doi.org/10.1109/SSP.2005.1628568}, year = {2005}, title = {{M}ulti-channel mono-path periodic signal extraction with global amplitude and phase modulation for music signal decomposition}, author = {{T}riki, {M}ahdi and {S}lock, {D}irk {T} {M}}, booktitle = {{SSP} 2005, 13 th {IEEE} {W}orkshop on {S}tatistical {S}ignal {P}rocessing, {J}uly 17-20, 2005, {B}ordeaux, {F}rance}, address = {{B}ordeaux, {FRANCE}}, month = {07}, url = {http://www.eurecom.fr/publication/1714} }
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