Similarity graphs for the concealment of long duration data loss in music

07/22/2016

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by   Nathanaël Perraudin, et al.

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We present a novel method for the compensation of long duration data gaps in audio signals, in particular music. The concealment of such signal defects is based on a graph that encodes signal structure in terms of time-persistent spectral similarity. A suitable candidate segment for the substitution of the lost content is proposed by an intuitive optimization scheme and smoothly inserted into the gap. Extensive listening tests show that the proposed algorithm provides highly promising results when applied to a variety of real-world music signals.