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  Authors

Mounika Jammula

  Keywords

ASR, HTK, TIMIT, MFCC, Baum-Welch re-estimation, Narrow band and wideband codecs

  Abstract


The ASR systems are getting integrated into VoIP and wireless systems for Remote Speech Recognition (RSR). There are many network impediments that affect the accuracy of ASR over a communication network, but the most important happens to be the effects of speech coding. The speech will be transmitted to the recognition servers using different speech coding standards. It is known that the quality of speech will degrade, when it is being encoded/decoded in several phases over a transmission channel, especially when transmitting the voice through the packet data networks.The evaluation of the speech coding effects is done by applying codecson the speech data and testing them over a speech recognition system built using HTK. The evaluation wasperformed using narrowband and wideband codecs. The recognition accuracy for uncoded data and the data coded with wideband codecwas around 95%, whereas for the data coded with narrowband codecs,the accuracy ranged between 80% and 85%.

  IJCRT's Publication Details

  Unique Identification Number - IJCRT1134078

  Paper ID - 209789

  Author type - Indian Author

  Page Number(s) - 411-415

  Pubished in - Volume 7 | Issue 3 | September 2019

  DOI (Digital Object Identifier) -    http://doi.one/10.1729/Journal.27625

  No Of Downloads - 1290

  Author Country - India, 500086, hyderabad, hyderabad, 500086, Science and Technology

  Publisher Name - IJPUBLICATION | www.ijcrt.org | ISSN : 2320-2882

  E-ISSN Number - 2320-2882

  Published Paper PDF : - http://www.ijcrt.org/papers/IJCRT1134078

  Published Paper URL: : - http://ijcrt.org/viewfull.php?&p_id=IJCRT1134078

  Published Paper PDF Downlaod: - download.php?file=IJCRT1134078

  Cite this article

Mounika Jammula,   "PERFORMANCE OF HTK BASED AUTOMATIC SPEECH RECOGNITIONSYSTEM WITH CODED SPEECH", International Journal of Creative Research Thoughts (IJCRT), ISSN:2320-2882, Volume.7, Issue 3, pp.411-415, September 2019, Available at :http://www.ijcrt.org/papers/IJCRT1134078.pdf

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