A new definition of the distortion matrix for an audio-to-score alignment system

05/29/2019

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by   A. J. Muñoz-Montoro, et al.

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In this paper we present a new definition of the distortion matrix for a score following framework based on DTW. The proposal consists of arranging the score information in a sequence of note combinations and learning a spectral pattern for each combination using instrument models. Then, the distortion matrix is computed using these spectral patterns and a novel decomposition of the input signal.