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- W2143663322 abstract "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 extracting such signals accurately from an underdetermined mixture of several, using iterated successive interference cancellation" @default.
- W2143663322 created "2016-06-24" @default.
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- W2143663322 date "2005-01-01" @default.
- W2143663322 modified "2023-09-24" @default.
- W2143663322 title "Multi-channel mono-path periodic signal extraction with global amplitude and phase modulation for music and speech signal analysis" @default.
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- W2143663322 doi "https://doi.org/10.1109/ssp.2005.1628568" @default.
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