Optimal Window and Lattice in Gabor Transform Application to Audio Analysis
Sound
2014-12-19 v2
Abstract
This article deals with the use of optimal lattice and optimal window in Discrete Gabor Transform computation. In the case of a generalized Gaussian window, extending earlier contributions, we introduce an additional local window adaptation technique for non-stationary signals. We illustrate our approach and the earlier one by addressing three time-frequency analysis problems to show the improvements achieved by the use of optimal lattice and window: close frequencies distinction, frequency estimation and SNR estimation. The results are presented, when possible, with real world audio signals.
Cite
@article{arxiv.1403.2180,
title = {Optimal Window and Lattice in Gabor Transform Application to Audio Analysis},
author = {Helene Lachambre and Benjamin Ricaud and Guillaume Stempfel and Bruno Torresani and Christoph Wiesmeyr and Darian M. Onchis},
journal= {arXiv preprint arXiv:1403.2180},
year = {2014}
}