Analysis of the chaotic nature of speech prosody and music

Speech and music prosody deals with the presence of rhythm. This work is the analysis of the presence of the chaotic nature in the duration patterns of speech segments. A chaotic system is one whose characteristics are apparently random with some amount of predictability. This study is carried out both quantitatively and qualitatively. The qualitative analysis is carried out using recurrence plots and phase space plots, whereas quantitative analysis is carried out using statistical measurements such as Hurst Exponent and Recurrence period density entropy (RPDE). Results obtained in the chaotic analysis are useful in electronic music synthesis and speech synthesis in order to improve the naturality of speech generated.