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http://hdl.handle.net/10553/52460
Title: | A new method for epoch detection based on the Cohen's class of time frequency representations | Authors: | Navarro-Mesa, Juan L. Lleida-Solano, E. Moreno-Bilbao, A. |
UNESCO Clasification: | 3307 Tecnología electrónica | Keywords: | Epoch detection Speech analisys Time-frequency representations |
Issue Date: | 2001 | Publisher: | 1070-9908 | Journal: | IEEE Signal Processing Letters | Abstract: | This paper presents a new method for detecting the instants of glottal closure (IGC), or epochs, in noisy environments based on the Cohen's class time-frequency representations (TFR), We define a detection function inspired in a time-frequency formulation for optimum detection and apply a morphologic closing over it to determine the epochs. It compares favorably with other methods (e.g., the SIFT-based and the Frobenius Norm [FN] function) in different levels of Gaussian noise. Experiments are carried over a data base compossed of ten speakers. | URI: | http://hdl.handle.net/10553/52460 | ISSN: | 1070-9908 | DOI: | 10.1109/97.935737 | Source: | IEEE Signal Processing Letters[ISSN 1070-9908],v. 8, p. 225-227 |
Appears in Collections: | Artículos |
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