Formant Vowel Structure Tracking by Goertzel Algorithm
Boo Tomas, Marko Obad · 2009
Formant frequencies structure gives a good view to determine linguistic as well as non-linguistic speech meaning and it represents a significant parameter within the synthesis and speech recognition procedure. In fact formants are groups of harmonics enhanced by the vocal tract resonance. There is a resonance i.e. the enhancement of spectral energy in speech signal spectrum at formant frequencies. Formant vowel /a/ structure tracking by Goertzel algorithm is presented in this paper.