DJ Mix Transcription with Multi-Pass Non-Negative Matrix Factorization
Résumé
DJ mix transcription is a crucial step towards DJ mix reverse engineering, which estimates the set of parameters and audio effects applied to a set of existing tracks to produce a performative DJ mix. We introduce a new approach based on a multi-pass NMF algorithm where the dictionary matrix corresponds to a set of spectrogram slices of the source tracks present in the mix. The multi-pass strategy is motivated by the high computational cost resulting from the use of a large NMF dictionary. The proposed method uses inter-pass filtering to favor temporal continuity and sparseness and is evaluated on a publicly available dataset. Our comparative results considering a baseline method based on dynamic time warping (DTW) are promising and pave the way of future NMF-based applications.
Mots clés
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Fait partie de 10.5281/zenodo.1422384 Jeu de données Schwarz, D., & Fourer, D. (2018). UnmixDB: A Dataset for DJ-Mix Information Retrieval (Version 1) [Data set]. Zenodo. https://doi.org/10.5281/ZENODO.1422384
