Skip to Main content Skip to Navigation
Conference papers

Analyse des structures harmoniques dans les signaux audio : modéliser les variations de hauteur et d'enveloppe spectrale

Abstract : Recently, numerous techniques have been developed for smart decomposition of time-frequency representations of audio. However, these methods are not necessarily well adapted for real music signals where each note can present continuous variations of both pitch and spectral envelope. A new model for the analysis of harmonic structures, which allows considering simultaneously those two kinds of variations, is introduced. Each note in a constant-Q transform is locally modeled as a weighted sum of narrowband harmonic spectra, and the model parameters are estimated by means of Probabilistic Latent Component Analysis. The algorithm has been tested in a task of monopitch estimation, and the very good results highlight the reliability and the robustness of the model.
Complete list of metadata

Cited literature [8 references]  Display  Hide  Download

https://hal.inria.fr/hal-00945240
Contributor : Roland Badeau <>
Submitted on : Monday, March 24, 2014 - 3:46:29 PM
Last modification on : Tuesday, February 2, 2021 - 10:36:03 AM
Long-term archiving on: : Tuesday, June 24, 2014 - 10:42:43 AM

File

gretsi2011.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00945240, version 1

Collections

Citation

Benoit Fuentes, Roland Badeau, Gael Richard. Analyse des structures harmoniques dans les signaux audio : modéliser les variations de hauteur et d'enveloppe spectrale. Actes du XXIIIème Colloque GRETSI, 2011, Bordeaux, France. ⟨hal-00945240⟩

Share

Metrics

Record views

160

Files downloads

588