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Analysis of signal of audio speech in process of speech recognition

Kubanek M.

Computing, Multimedia and Intelligent Techniques

2006

Vol. 2, nr 1

55-64

The purpose of this work is to explain the theoretical issues and implementational techniques related to the fascinating field of speech recognition. The topic of discussion are focused on some of the well-established and widely used speech coding standards, required to speech recognition and speaker identification. By studying the most successful standards and understanding their principles, performance and limitations, it is possible to apply a particular technique to a given situation according to the underlying constraints - with the ultimate goal being the development of next-generation algorithms, with improvements in all aspects. This document contains own created methods to determine the beginning and end of isolated words in audio speech. To extraction of the audio features of person's speech, in this work it was applied the mechanism of cepstral speech analysis. Finally, the paper will show results of speech coding.