Metadata for Audio
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Paper CD4-1
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A System for Harmonic Analysis of Polyphonic
Music
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Claas Derboven, Markus Cremer
Fraunhofer
IIS AEMT, Ilmenau, Germany
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| A system for harmonic analysis of polyphonic musical
signals is presented. The system uses a transform with
a nonuniform frequency resolution for the extraction of
prominent tonal components and determines the key
and the contained chords of a musical input signal with
high accuracy. A statistical approach based on the frequency
of occurrence of musical notes for determining
the key is described. An algorithmic solution for chord
determination is presented with a concise explanation.
Finally, a qualitative evaluation of the system�s performance
is conducted to demonstrate the applicability to
real world audio signals. |
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