Pre-processing of input features using LPC and warping process
This paper presents pre-processing of input features to artificial neural network (NN). This is for preparation of reliable reference templates for the set of words to be recognized. The first task is to extract pitch features using Pitch Scale Harmonic Filter (PSHF) algorithm. Another tas...
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| Format: | Article |
| Language: | en |
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2005
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| Online Access: | http://eprints.utm.my/1574/1/ccsp1.pdf http://eprints.utm.my/1574/ |
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| _version_ | 1845470500212441088 |
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| author | Sudirman, Rubita Sh-Hussain, Salleh Ming, Ting Chee |
| author_facet | Sudirman, Rubita Sh-Hussain, Salleh Ming, Ting Chee |
| author_sort | Sudirman, Rubita |
| building | UTM Library |
| collection | Institutional Repository |
| content_provider | Universiti Teknologi Malaysia |
| content_source | UTM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | This paper presents pre-processing of input features to
artificial neural network (NN). This is for preparation
of reliable reference templates for the set of words to be
recognized. The first task is to extract pitch features
using Pitch Scale Harmonic Filter (PSHF) algorithm.
Another task is to align the input frames (test set) to the reference template (training set) using a modified DTW
algorithm called DTW fixing frame (DTW-FF)algorithm. This proper time normalization is needed since NN is designed to compare data of the same length; same speech can varies in their duration. By performing frame fixing or time normalization, the test set and the training set is adjusted to a fix number of frames throughout the sets utilizing the local distance score of the matched features. Then those features can be adapted to NN for further recognition tuning. |
| format | Article |
| id | my.utm.eprints-1574 |
| institution | Universiti Teknologi Malaysia |
| language | en |
| publishDate | 2005 |
| record_format | eprints |
| spelling | my.utm.eprints-15742012-01-05T02:18:19Z http://eprints.utm.my/1574/ Pre-processing of input features using LPC and warping process Sudirman, Rubita Sh-Hussain, Salleh Ming, Ting Chee TK Electrical engineering. Electronics Nuclear engineering This paper presents pre-processing of input features to artificial neural network (NN). This is for preparation of reliable reference templates for the set of words to be recognized. The first task is to extract pitch features using Pitch Scale Harmonic Filter (PSHF) algorithm. Another task is to align the input frames (test set) to the reference template (training set) using a modified DTW algorithm called DTW fixing frame (DTW-FF)algorithm. This proper time normalization is needed since NN is designed to compare data of the same length; same speech can varies in their duration. By performing frame fixing or time normalization, the test set and the training set is adjusted to a fix number of frames throughout the sets utilizing the local distance score of the matched features. Then those features can be adapted to NN for further recognition tuning. 2005-11-14 Article NonPeerReviewed application/pdf en http://eprints.utm.my/1574/1/ccsp1.pdf Sudirman, Rubita and Sh-Hussain, Salleh and Ming, Ting Chee (2005) Pre-processing of input features using LPC and warping process. 1st Conference on Computers, Commmunications, and Signal Processing . pp. 300-303. ISSN 1-4244-0012-0 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Sudirman, Rubita Sh-Hussain, Salleh Ming, Ting Chee Pre-processing of input features using LPC and warping process |
| title | Pre-processing of input features using LPC and warping process |
| title_full | Pre-processing of input features using LPC and warping process |
| title_fullStr | Pre-processing of input features using LPC and warping process |
| title_full_unstemmed | Pre-processing of input features using LPC and warping process |
| title_short | Pre-processing of input features using LPC and warping process |
| title_sort | pre-processing of input features using lpc and warping process |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.utm.my/1574/1/ccsp1.pdf http://eprints.utm.my/1574/ |
| url_provider | http://eprints.utm.my/ |