The phase-space geometrical property of speech signals among the neighbor phonemes

The number of Japanese consonants are more than the vowels, overwhelmingly. The Japanese consonants are defined by ones articulated manner and articulated place, and a phonetic change of them are quite complex. We remark a transient from stationary signal (like vowel) to nonstationary signal (Consonant) which an amplitude of its time domain waveform has not uniform, and try to visualize a behavior of dynamics of some Japanese consonants. In phase-space. A Recurrence Plot (RP) imaging analysis is surpassing method where we confront with non-stationary (or like) signals. In this report, we try to analyze particular signals. In the between C-V (Consonant-Vowel) phonemes through using the RP analysis. As a result, we can show a quantitative measure from phase-space geometry of some Japanese consonant.