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arXiv · 1702.02130

On the Importance of Temporal Context in Proximity Kernels: A Vocal Separation Case Study

Delia Fano Yela·Sebastian Ewert·Derry FitzGerald·Mark Sandler
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Abstract

Musical source separation methods exploit source-specific spectral characteristics to facilitate the decomposition process. Kernel Additive Modelling (KAM) models a source applying robust statistics to time-frequency bins as specified by a source-specific kernel, a function defining similarity between bins. Kernels in existing approaches are typically defined using metrics between single time frames. In the presence of noise and other sound sources information from a single-frame, however, turns out to be unreliable and often incorrect frames are selected as similar. In this paper, we incorporate a temporal context into the kernel to provide additional information stabilizing the similarity search. Evaluated in the context of vocal separation, our simple extension led to a considerable improvement in separation quality compared to previous kernels.

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Delia Fano Yela, Sebastian Ewert, Derry FitzGerald, Mark Sandler. 2017-02-07. On the Importance of Temporal Context in Proximity Kernels: A Vocal Separation Case Study. https://arxiv.org/abs/1702.02130

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