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The objective of this work is to analyze the effect of emotions on the excitation source of speech production. The neutral, angry, happy, boredom and fear emotions are considered for the study. Initially the electroglottogram (EGG) and its derivative signals are compared across different emotions. The mean, standard deviation and contour of instantaneous pitch, and strength of excitation parameters are derived by processing the derivative of the EGG and also speech using zero-frequencydoi:10.21437/interspeech.2010-284 fatcat:fyqigtbqdraadeu6kvk5tnobu4