| Title |
Formantinių požymių išskyrimo metodai / |
| Translation of Title |
Formant feature extraction methods. |
| Authors |
Lipeika, Antanas Leonas |
| DOI |
10.15388/Im.2008.0.3419 |
| Full Text |
|
| Is Part of |
Informacijos mokslai.. Vilnius : Vilniaus universiteto leidykla. 2007, t. 42-43, p. 201-206.. ISSN 1392-0561. eISSN 1392-1487 |
| Abstract [eng] |
Formant feature extraction is investigated in the paper. Extraction of formant features is based on calculating frequency positions of spectral peaks. The spectrum has been calculated from parameters of linear prediction model. Reliability of formant feature extraction depends on the method used for linear prediction model parameter estimation. The autocorrelation method previously used for linear prediction model parameter estimation was not reliable enough for formant feature extraction. Therefore we were looking for more reliable method of linear prediction model parameter estimation. The previously used autocorrelation method was compared with covariance, Burg, Marple methods and the modified Split Levinson algorithm. It was concluded, that autocorrelation, covariance, Burg and Marple methods are similar from the point of view of formant feature extraction. The modified Split Levinson algorithm provides the best formant feature estimates. |
| Published |
Vilnius : Vilniaus universiteto leidykla |
| Type |
Journal article |
| Language |
Lithuanian |
| Publication date |
2007 |
| CC license |
|
