A fractal approach to normal and pathological voices
| Autor: | M. Ouayoun, Claude-Henri Chouard, Bernard Meyer, Vincent Péan, Fugain C |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Adult
Male Stationary process Sound Spectrography Voice Disorders Computer science Speech recognition General Medicine White noise Vocal Cords respiratory system Scale (music) Signal Sensitivity and Specificity Fractal Fractals Otorhinolaryngology Vowel otorhinolaryngologic diseases Humans Pathological |
| Zdroj: | Acta oto-laryngologica. 120(2) |
| ISSN: | 0001-6489 |
| Popis: | Using the box-counting method, we demonstrated recently that the stationary signal of vowels is not fractal, but provides the opportunity to design in the smallest scale a kind of signature for each vowel. This fractal approach to these components of speech allows us to quantify the roughness of the voice, between I (sinusoidal complex signal) and 2 (white noise). We used this method to compare these values in normal and pathological voices. We studied the speech of 10 normal speakers, 6 patients suffering from unilateral vocal fold palsy and 6 suffering from various other dysphonias. The meaning of this fractal measurement is discussed and compared with electroglottogram and spectrographic analysis. |
| Databáze: | OpenAIRE |
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