%0 Journal Article
%T Optimal Window and Lattice in Gabor Transform Application to Audio Analysis
%A Helene Lachambre
%A Benjamin Ricaud
%A Guillaume Stempfel
%A Bruno Torresani
%A Christoph Wiesmeyr
%A Darian M. Onchis
%J Computer Science
%D 2014
%I arXiv
%X 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.
%U http://arxiv.org/abs/1403.2180v2