Vowel spectral analysis using the psychoacoustic ERB scale for the word stress detection

The paper presents a possibility to determine the stressed syllable in the word by examining features of the vowel formant structure. Based on the analysis of the array of logatoms the vowel formant structure is identified. The energy characteristics of individual formants of different vowels in one word are compared. Spectrum is split by the vowels psychoacoustic ERB scale. For ease of handling of the material resulting array of partial dispersions is codified. To determine the stressed vowel the resulting array codes are broken on the basis of the stressed/unstressed vowel characteristic and phoneme type. Partial arrays comparison enables to confirm the existence of the stress feature characteristic and identify phonetic features of this phenomenon, existing in the vowel formant structure. The vowel stress characteristic is defined by the vowel formant pattern and can effectively complement the determination of stressed syllables being added to conventional stressed vowel characteristics.