Integrated system for prosodic features detection from speech

The paper presents the instruments implemented in SROL (Voiced Sound of Romanian Project) used for the extraction of the fundamental frequency F0 and of the formants F1-F4. In order to have a better detection of the prosodic features, we put together four methods: autocorrelation method, cepstral methods, AMDF (average magnitude difference function), HPS (harmonic product spectrum). The final value of pitch (F0) is established after an integration of the partial results of each method depending on their performance. For the formants detection we used a fuzzy method of spectrum concatenation.