Speech Compression

May 11th, 2015
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Abstract Arabic language is a Semitic language that has many differences when compared to European languages such as English. One of these differences is how to pronounce the 10 digits, zero through nine. Except for zero, all Arabic digits are polysyllabic words.

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Speech CompressionInformation Sciences 173 (2005) 115139 www.elsevier.com/locate/insInvestigating spoken Arabic digits in speech recognition setting Yousef Ajami AlotaibiComputer Engineering Department, College of Computer and Information Sciences, King Saud University, P.O. Box 57168, Riyadh 11574, Saudi Arabia Received 3 October 2003; received in revised form 18 May 2004; accepted 14 July 2004Abstract Arabic language is a Semitic language that has many dierences when compared to European languages such as English. One of these dierences is how to pronounce the 10 digits, zero through nine. Except for zero, all Arabic digits are polysyllabic words. In this paper Arabic digits were investigated from the speech recognition problem point of view. An articial neural network based speech recognition system was designed and tested with automatic Arabic digit recognition. The system is an isolated whole word speech recognizer and it was implemented as both a multi-speaker and speaker-independent modes. During the recognition process, noise was removed from digitized speech by means of band-pass lters, the signal was also pre-emphasized, and windowed and blocked by Hamming window. A time alignment algorithm was used to compensate for dierences in utterance lengths and misalignments between phonemes. Frame features were extracted by using MFCC coecients to reduce the amount of the information in the input signal. Finally the neural netw

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