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Paper detail

Optimal Window and Lattice in Gabor Transform Application to Audio Analysis

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.

preprint2014arXivOpen access
Helene LachambreBenjamin RicaudGuillaume StempfelBruno TorresaniChristoph WiesmeyrDarian M. Onchis
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Helene LachambreBenjamin RicaudGuillaume StempfelBruno TorresaniChristoph WiesmeyrDarian M. Onchis

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