Harmonic Constraint in Music Spectrogram Reconstruction
It is assumed that readers have known the concepts about harmonic (overtone) structure of musical notes. And readers are recommended to know the non-negative matrix factorization (NMF) algorithm. But anyway, I tried to briefly elaborate it in this article.
This article gives a brief review of harmonic constraints on timbre dictionary. Such harmonic constraints are useful in helping non-negative matrix factorization (NMF) algorithm to converge into a musically meaningful result, which could enable automatic music transcription (AMT) and music source separation (MSS). Noticing the disadvantages of the traditional NMF algorithm and hard-harmonic-constraints, this article proposes a dB-trick for NMF which could loosen the non-negativity constraints, and a soft-harmonic-constraint method based on regularization which gives more freedom to the parameter compared with the existing hard-harmonic-constraints.
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本文作者： lucainiaoge
本文链接： https://lucainiaoge.github.io.git/2020/01/15/Harmonic_Constraint_in_Music_Spectrogram_Reconstruction/
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