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 timefrequency 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.


Editor(s):
Petcu, D
Watt, S
Zaharie, D
Kovacs, L
Negru, V
Ida, T
Jebelean, T
Published in:
2015 17Th International Symposium On Symbolic And Numeric Algorithms For Scientific Computing (Synasc), 109-112
Presented at:
17th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing (SYNASC), Timisoara, ROMANIA, SEP 21-24, 2015
Year:
2016
Publisher:
New York, Ieee
ISSN:
2470-8801
ISBN:
978-1-5090-0461-4
Keywords:
Laboratories:




 Record created 2016-11-21, last modified 2018-09-13


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