Fundamental frequency of speech -Reference values for speech therapy
Résumé
In this article, we provide a literature review about the value of the fundamental frequency (fo) of voice and speech. Reference values for men, women and children are proposed, based on more than two hundred case studies. We also analyze our own corpora of children, men, and women to extract the evolution of fo according to age on two specific modalities: sustained vowels and repetition of short sentences. A summary of the main trends and a model of fo evolution is proposed. We describe the implementation of these reference values in the voice therapy software VOCALAB and speech therapy software DIADOLAB.
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