Online score‐informed source separation in polyphonic mixtures using instrument spectral patterns. Issue 4 (21st May 2019)

• Record Type: Journal Article
• Authors: Muñoz‐Montoro, A. J.; Vera‐Candeas, P.; Cortina, R.; Combarro, E. F.; Alonso‐Jordá, P.
• Is Part Of: Computational and mathematical methods. Volume 1:Issue 4(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-05-21
• Subjects: dynamic time warping -- NMF -- online -- score‐alignment -- score‐informed -- sound source separation; Mathematics -- Data processing -- Periodicals; Numerical analysis -- Periodicals; Numerical analysis; Mathematics -- Data processing; Periodicals; 004.0151
• DOI: 10.1002/cmm4.1040
• Languages: English
• ISSNs: 2577-7408

Abstract

Abstract : Soundprism is a real‐time algorithm to separate polyphonic music audio into source signals, given the musical score of the audio in advance. This paper presents a framework for a Soundprism implementation. A study of the sound quality of the online score‐informed source separation is shown, although a real‐time implementation is not carried out. The system is compound of two stages: (1) a score follower that matches a MIDI score position to each time frame of the musical performance; and (2) a source separator based on a nonnegative matrix factorization approach guided by the score. Real audio mixtures composed of an instrumental quartets were employed to obtain preliminary results of the proposed system.