Timbre-constrained recursive time-varying analysis for musical note separation

Yiju Lin, Wei Chen Chang, Tien Ming Wang, Alvin W.Y. Su, Wei Hsiang Liao

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

Note separation in music signal processing becomes difficult when there are overlapping partials from co-existing notes produced by either the same or different musical instruments. In order to deal with this problem, it is necessary to involve certain invariant features of musical instrument sounds into the separation processing. For example, the timbre of a note of a musical instrument may be used as one possible invariant feature. In this paper, a timbre estimate is used to represent this feature such that it becomes a constraint when note separation is performed on a mixture signal. To demonstrate the proposed method, a timedependent recursive regularization analysis is employed. Spectral envelopes of different notes are estimated and a modified parameter update strategy is applied to the recursive regularization process. The experiment results show that the flaws due to the overlapping partial problem can be effectively reduced through the proposed approach.

原文English
主出版物標題DAFx 2013 - 16th International Conference on Digital Audio Effects
發行者National University of Ireland
ISBN(電子)0956326773, 9780956326775
出版狀態Published - 2013
事件16th International Conference on Digital Audio Effects, DAFx 2013 - Maynooth, Ireland
持續時間: 2013 九月 22013 九月 5

出版系列

名字DAFx 2013 - 16th International Conference on Digital Audio Effects

Other

Other16th International Conference on Digital Audio Effects, DAFx 2013
國家/地區Ireland
城市Maynooth
期間13-09-0213-09-05

All Science Journal Classification (ASJC) codes

  • 電腦科學應用
  • 訊號處理
  • 聲學與超音波
  • 音樂

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