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An Implementation of the Klatt Speech Synthesiser
Luis Miguel Teixeira de Jesus; Francisco Vaz; José Carlos PrincipeIn this work it is described a software tool implementing the Klatt synthesiser to be used on a teaching laboratory. The user interface allows an easy edition of the synthesis parameters, thus the student may quick and easily change the phonetic characteristics of a vowel and listen to the result or seeing its time or frequency properties. ; Neste trabalho descreve-se a implementa&cced...
Parametric Models for Characterization, Quantification and Defection of Epilept...
Francisco António Cardoso Vaz; José Carlos PríncipeThis work presents an automated method based on the autoregressive (AR) modelling of the electroencephalogram (EEG). The EEG signal is divided in short segments (typically 2 seconds) and AR models subsequently evaluated. The model parameters quantify each segment and constitute features for classification using pattern recognition techniques. The method was validated with a data set including three types of epi...
A System for the Microanalysis and Automatic classifiction of Sleep Electroence...
Ana Maria Perfeito Tomé; José Carlos PríncipeAutomatic sleep analysis has been a subject of interest since the sixties, mainly because of the growing importante of various sleep disorders. The visual analysis of sleep recordings is a tedious, laborious, time-consuming and expensive task. During a single night recording 400-500 meters of paper are produced and the visual analysis usually takes several hours of an expert.This work presents an environment wh...
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