This paper introduces a visualization technique for music similar to that of spectrograms which display time and frequency content, but with the addition of a multi-timescale aggregation that offers at-a-glance visual structures which are interpretable as the global timbre resulting from a normative performance of a score.

This paper presents and studies a time frequency distribution obtained from a Gabor expansion of a signal. The distribution is named the Positive Gabor Spectrogram, and is a new positive-like distribution with correct marginal distributions. Two side effects of correct marginals are non-additivity and time frequency fading. These are phenomena of a statistical correct distribution which do not ...

Classical single-channel speech enhancement algorithms have two convenient properties: they require pre-learning the noise model but not the speech model, and they work online. However, they often have difficulties in dealing with non-stationary noise sources. Source separation algorithms based on nonnegative spectrogram decompositions are capable of dealing with non-stationary noise, but do no...