HAMR@ISMIR 2015 Proceedings

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====interval magic====

| Authors | Georgi Dzhambazov, Andrés Ferraro |
| Affiliation | [[http://mtg.upf.edu|Music Technology Group]] |
| Code | [[https://github.com/andrebola/hamr-hack|Github Link]] |



A tool which lets the user enter a melodic query by  specifying a sequence of musical intervals.

It automatically finds all occurrences of the melodic query within a the vocal line of a song.
For example it can find that a quint up, followed by a minor third down, followed by a octave appears at the beginning of the chorus and end of verse.  

Users who are learning singing might find this tool useful to exercise music intervals for their favorite songs.

based on algorithms:

*Pitch Extraction
Melody Extraction from Polyphonic Music Signals using Pitch Contour Characteristics
http://mtg.upf.edu/node/2436

==Note segmentation==
Note segmentation is performed based on pitch contour characteristics (island building) and signal RMS. Notes below an adjustable minimum duration are rejected.

==Demo==

1. Make a query selecting the sequence of notes.
{{::screen3.png?200|}}
2. Then the Segmentation is computed and the output is displayed
{{::screen4.png?600|}}

{{::screenshotandalucia_segm.png?400|}}

[1] R. J. McNab et al., "Signal processing for melody transcription," in Proc. Proc. 19th Australasian Computer Science Conf., 1996

HAMR@ISMIR 2015 Proceedings

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