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

Olivier Derrien (1)

1 UTLN - Université de Toulon

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.

Mots clés: Transcription automatique; matching pursuit

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

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⟩