Music alignment is the association of events in a score with points in the time axis of an audio signal. The signal is thus segmented according to the events in the score. We propose a new methodology for automatic alignment based on dynamic time warping, where the spectral peak structure is used to compute the local distance, enhanced by a model of attacks and of silence. The methodology can cope with performances considered difficult to align, like polyphonic music, trills, fast sequences, or multi-instrument music. An optimisation of the representation of the alignment path makes the method applicable to long sound files, so that unit databases can be fully automatically segmented and labeled.
Alignment of Monophonic and Polyphonic Music to a Score
ORIO, NICOLA;
2001
Abstract
Music alignment is the association of events in a score with points in the time axis of an audio signal. The signal is thus segmented according to the events in the score. We propose a new methodology for automatic alignment based on dynamic time warping, where the spectral peak structure is used to compute the local distance, enhanced by a model of attacks and of silence. The methodology can cope with performances considered difficult to align, like polyphonic music, trills, fast sequences, or multi-instrument music. An optimisation of the representation of the alignment path makes the method applicable to long sound files, so that unit databases can be fully automatically segmented and labeled.Pubblicazioni consigliate
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