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Novel melody line identification algorithm for polyphonic MIDI music

Velusamy, Sudha and Thoshkahna, Balaji and Ramakrishnan, KR (2007) Novel melody line identification algorithm for polyphonic MIDI music. In: 13th International Multimedia Modeling Conference (MMM 2007), JAN 09-12, 2007, Singapore.

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The problem of automatic melody line identification in a MIDI file plays an important role towards taking QBH systems to the next level. We present here, a novel algorithm to identify the melody line in a polyphonic MIDI file. A note pruning and track/channel ranking method is used to identify the melody line. We use results from musicology to derive certain simple heuristics for the note pruning stage. This helps in the robustness of the algorithm, by way of discarding "spurious" notes. A ranking based on the melodic information in each track/channel enables us to choose the melody line accurately. Our algorithm makes no assumption about MIDI performer specific parameters, is simple and achieves an accuracy of 97% in identifying the melody line correctly. This algorithm is currently being used by us in a QBH system built in our lab.

Item Type: Conference Paper
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 10 Jun 2010 09:49
Last Modified: 19 Sep 2010 05:58
URI: http://eprints.iisc.ac.in/id/eprint/26572

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