Establishment of Vocal Communication System under Heavy Environmental Noise for Handicapped People with Speech Impediment

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The purpose of this research is to establish a vocal communication system for handicapped people with speech impediment. The system automatically converts the unclear speech of a person with a speech impediment to a clear speech by using soft computing technique. In the extraction of features of speech and the conversion of them, the model with higher conversion accuracy than ever has been accomplished, and the clear tone conversion of speech has been obtained.