Chaotic Voice Analysis And Cerebral Dynamics: On Aging And The "Disturbance" Of Chaos

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  • 発話音声にみるカオス性と脳活性度分析 ～加齢による影響を中心に～
  • ハツワ オンセイ ニ ミル カオスセイ ト ノウ カッセイド ブンセキ : カレイ ニ ヨル エイキョウ オ チュウシン ニ

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Abstract

It is thought that the person's state of the brain function can be evaluated by analyzing the utterance voice by a chaos theory method. Our analytical algorithm "SiSECA" shows us that voice signal has not only chaotic behavior but random. Using to measure the level of complexity or disturbance of state of voice signal by SiCECA, it is possible to observe the changes in the mental status of a speaker from the changes in the chaoticity of the speaker's voice. Like the variations in the fist Lyapunov exponents, the variations of CEM are strongly related to the mental and physical status of speakers. This article mainly focus in the aspect of uttered voice chaoticity "disturbance" by aging.

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