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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/3104

Title: APPLICATION OF AMHARIC SPEECH RECOGNITION SYSTEM TO COMMAND AND CONTROL COMPUTER: AN EXPERIMENT WITH MICROSOFT WORD
Authors: MARTHA, YIFIRU
Advisors: Ato Tesfaye Birru
Ato Solomon Berehanu
AtoKinfe Taddesse
Dr. Moges
Keywords: AMHARIC SPEECH RECOGNITION
MICROSOFT WORD
Copyright: Jul-2003
Date Added: 21-May-2012
Publisher: ADDIS ABABA UNIVERSITY
Abstract: This study explored the possibility of developing Amharic speech input interface to command and control Microsoft Word. Towards this end, literature were reviewed on speech recognition, application of speech recognition, HMM and its application in speech recognition, Amharic speech recognition, HTK and human-computer interaction. Speech input interface requires speech recognition system. To develop and test the required Amharic speech recognition system speech data were recorded from 26 people (10 female and 16 male) in the age range of 20 to 35. 76.9% of the recorded data were used to train the recognizers and the remaining data were used for testing the performance of recognizers. Two (fixed variance and variable variance based models) HMM-based, speaker independent, small vocabulary, isolated Amharic word recognizers were developed. The performance of these recognizers was tested using the test data. Although both of them recognized all the test data correctly, the performance of recognizer with variable variance performed better than the recognizer with fixed variance in live environment. Thus, the recognizer with variable variance was further considered for the development of the prototype Amharic speech input interface system. Speech input interface requires communication interface that sends the recognized command word to the application, Microsoft Word in this case. In this study the communication interface was written using Visual Basic 6. To test the performance of the system as a whole, 18 randomly selected command words were given to 6 people (3 command words for each) and these people were asked to command Microsoft Word orally. The system performed 16 commands accurately and only two command words were wrongly recognized and thus Microsoft Word performed wrong actions. Finally, the prototype speech input interface system developed in this experiment was integrated with Microsoft Word as a Macro for regular use. The result of the experiment showed the feasibility of developing Amharic speech input interface. Based on the result of the study and what has been learned in the course of the research recommendations for further study were forwarded.
URI: http://hdl.handle.net/123456789/3104
Appears in:Thesis - Information Science

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