Vowel classification based on frequency response of vocal tract
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Institute of Electrical and Electronics Engineering (IEEE)
2009
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| Institution: | Universiti Malaysia Perlis |
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my.unimap-68702010-11-23T06:36:46Z Vowel classification based on frequency response of vocal tract Paulraj, M.P. Sazali, Yaacob Shahrul Azmi, M. Y. Automatic speech recognition Speech recognition Signal classification Regression analysis Speech perception Natural language processing Link to publisher's homepage at http://ieeexplore.ieee.org Automatic speech recognition (ASR) has made great strides with the development of digital signal processing hardware and software especially using English as the language of choice. In this paper, a modified feature extraction approach based on frequency response model of the vocal tract and Bark Scale using vowel utterances from Malaysian speakers is presented. This technique calculates mean and maximum energy values from fixed frequency bands between 20Hz to 2500Hz. The frequency band sizes are 100Hz, 200Hz, 300Hz, 400Hz and 500Hz These results are then compared with mean and maximum values of first 14 critical bands of the bark scale. The energy features obtained are classified using Multinomial Logistic Regression and used to detect five vowels of /a/, /e/, /i/, /o/ and /u/ recorded from 80 Malaysian speakers. The classification results obtained from the 100Hz and 200Hz bands gave better result than the Bark Scale. Vowel /a/, /e/ and /i/ obtained a perfect 100% detection rate for both 100Hz and 200Hz bands. Vowel /o/ and /u/ did not fare as good but still obtained greater than 90% classification rate. 2009-08-13T03:05:58Z 2009-08-13T03:05:58Z 2008-05 Article p.1125-1130 978-1-4244-1691-2 http://ieeexplore.ieee.org/xpls/abs_all.jsp?=&arnumber=4580782 http://hdl.handle.net/123456789/6870 en Proceedings of the International Conference on Computer and Communication Engineering (ICCCE 2008) Institute of Electrical and Electronics Engineering (IEEE) |
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Universiti Malaysia Perlis |
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| continent |
Asia |
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Malaysia |
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Universiti Malaysia Perlis |
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| language |
English |
| topic |
Automatic speech recognition Speech recognition Signal classification Regression analysis Speech perception Natural language processing |
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Automatic speech recognition Speech recognition Signal classification Regression analysis Speech perception Natural language processing Paulraj, M.P. Sazali, Yaacob Shahrul Azmi, M. Y. Vowel classification based on frequency response of vocal tract |
| description |
Link to publisher's homepage at http://ieeexplore.ieee.org |
| format |
Article |
| author |
Paulraj, M.P. Sazali, Yaacob Shahrul Azmi, M. Y. |
| author_facet |
Paulraj, M.P. Sazali, Yaacob Shahrul Azmi, M. Y. |
| author_sort |
Paulraj, M.P. |
| title |
Vowel classification based on frequency response of vocal tract |
| title_short |
Vowel classification based on frequency response of vocal tract |
| title_full |
Vowel classification based on frequency response of vocal tract |
| title_fullStr |
Vowel classification based on frequency response of vocal tract |
| title_full_unstemmed |
Vowel classification based on frequency response of vocal tract |
| title_sort |
vowel classification based on frequency response of vocal tract |
| publisher |
Institute of Electrical and Electronics Engineering (IEEE) |
| publishDate |
2009 |
| url |
http://dspace.unimap.edu.my/xmlui/handle/123456789/6870 |
| _version_ |
1643788614604161024 |