FAST ESTIMATION OF WARPING FACTOR IN THE VOCAL TRACT LENGTH NORMALIZATION USING OBTAINED SCORES OF GENDER DETECTION MODELING

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SHEKOFTEH YASSER; GOODARZI MOHAMMAD MOHSEN; GHOLIPOUR HASAN; KABUDIAN SEYED JAHANSHAH; Almasganj farshad; REZA SHAGHAYEGH; SARRAF REZAEI IMAN

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Journal: SIGNAL AND DATA PROCESSING Year:2016 | Volume:- | Issue:1 (SERIAL 27) Page(s): 57-70

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Title

FAST ESTIMATION OF WARPING FACTOR IN THE VOCAL TRACT LENGTH NORMALIZATION USING OBTAINED SCORES OF GENDER DETECTION MODELING

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Keywords

SPEECH RECOGNITIONQ2

VOCAL TRACT LENGTH NORMALIZATIONQ2

GENDER DETECTIONQ2

LINEAR REGRESSIONQ2

WARPING FACTORQ2

Abstract

The performance of automatic SPEECH RECOGNITION (ASR) systems is adversely affected by the variations in speakers, audio channels and environmental conditions. Making these systems robust to these variations is still a big challenge. One of the main sources of variations in the speakers is the differences between their Vocal tract length (VTL). VOCAL TRACT LENGTH NORMALIZATION (VTLN) is an effective method introduced to cope with this variation. In this method, the speech spectrum of each speaker is frequency warped according to a specific WARPING FACTOR of that speaker. In this paper, we first developed the common search-based method to obtain the appropriate WARPING FACTOR over a HMM-based Persian continuous SPEECH RECOGNITION system. Then pointing out the computational cost of search-based method, we proposed a LINEAR REGRESSION process for estimating WARPING FACTOR based on the scores generated by our GENDER DETECTION system. Experimental results over a Persian conversational speech database shown an improvement about 0.54 percent in word recognition accuracy as well as a significant reduction in computational cost of estimating WARPING FACTOR, compared to search-based approach.

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APA: Copy

SHEKOFTEH, YASSER, GOODARZI, MOHAMMAD MOHSEN, GHOLIPOUR, HASAN, KABUDIAN, SEYED JAHANSHAH, Almasganj, farshad, REZA, SHAGHAYEGH, & SARRAF REZAEI, IMAN. (2016). FAST ESTIMATION OF WARPING FACTOR IN THE VOCAL TRACT LENGTH NORMALIZATION USING OBTAINED SCORES OF GENDER DETECTION MODELING. SIGNAL AND DATA PROCESSING, -(1 (SERIAL 27)), 57-70. SID. https://sid.ir/paper/160724/en

Vancouver: Copy

SHEKOFTEH YASSER, GOODARZI MOHAMMAD MOHSEN, GHOLIPOUR HASAN, KABUDIAN SEYED JAHANSHAH, Almasganj farshad, REZA SHAGHAYEGH, SARRAF REZAEI IMAN. FAST ESTIMATION OF WARPING FACTOR IN THE VOCAL TRACT LENGTH NORMALIZATION USING OBTAINED SCORES OF GENDER DETECTION MODELING. SIGNAL AND DATA PROCESSING[Internet]. 2016;-(1 (SERIAL 27)):57-70. Available from: https://sid.ir/paper/160724/en

IEEE: Copy

YASSER SHEKOFTEH, MOHAMMAD MOHSEN GOODARZI, HASAN GHOLIPOUR, SEYED JAHANSHAH KABUDIAN, farshad Almasganj, SHAGHAYEGH REZA, and IMAN SARRAF REZAEI, “FAST ESTIMATION OF WARPING FACTOR IN THE VOCAL TRACT LENGTH NORMALIZATION USING OBTAINED SCORES OF GENDER DETECTION MODELING,” SIGNAL AND DATA PROCESSING, vol. -, no. 1 (SERIAL 27), pp. 57–70, 2016, [Online]. Available: https://sid.ir/paper/160724/en

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