Tonal description of polyphonic audio for music content processing

TitleTonal description of polyphonic audio for music content processing
Publication TypeJournal Article
Year of Publication2006
AuthorsGómez, E.
Journal TitleINFORMS Journal on Computing, Special Cluster on Computation in Music
Volume18
AbstractWe present a method to extract a description of the tonal aspects of music from polyphonic audio signals. We define this tonal description using different levels of abstraction, differentiating between low-level signal descriptors and high-level textual labels. We also establish diverse emporal scales for description, defining some features as being attached to a certain time instant, and other global descriptors as related to a wider segment. The description is validated by estimating the key of a piece. We also propose the description as a tonal representation of the polyphonic audio signal to measure tonal similarity between audio excerpts and to establish the tonal structure of a musical piece.
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