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[PENDING] Sparse and structured decomposition of audio signals on hybrid dictionaries using musical priors

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Academic year: 2024

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FIG. 1. Time-frequency representation of a recording of a glockenspiel excerpt. The vertical lines correspond to the at-tacks of the notes and the horizontal lines correspond to the partials.
FIG. 2. Illustration of the two MDCT bases that account for the tonal part (long time resolution) and the transient part (short time resolution) of the signal.
FIG. 4. Structured significance map for tonals for a Beethoven String Quartet Op.127 excerpt using chroma information.
FIG. 3. Structured significance map for tonals for a Glock- Glock-enspiel excerpt using chord information
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