Multi-scale frame-based analysis of audio signals for musical transcription using a dictionary of chromatic waveforms

Abstract : A new method for analyzing audio signals in the context of musical transcription is described. It consists of a frame-based expansion of the signal over a multi-scale time-fre\-quency dictionary with a set of logarithmic discrete frequencies. This method, based on the Matching Pursuit algorithm, provides the same frequency resolution as a constant-Q filter-bank, but with a better time resolution, especially in low frequencies, and an efficient noise rejection.
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Olivier Derrien. Multi-scale frame-based analysis of audio signals for musical transcription using a dictionary of chromatic waveforms. ICASSP'06, May 2006, Toulouse, France. CD-ROM (4 p.). ⟨hal-00467532⟩

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