Measuring vocal-tract impedance at the lips: model, hypotheses and limits
Résumé
Non-invasive techniques (such as the so-called RAVE) were developed to characterize vocal-tract acoustics usinga broadband excitation and a microphone positioned closed to the lips. The measured pressure for an open-mouthcondition, calibrated by a mouth-closed reference condition, provides estimates of the radiating vocal-tractresonance frequencies. Recently, exponential-sweep-based methods were reported to measure vocal-tract impedance. We propose to explicit the underlying hypotheses of such approaches, and to test their validity domain.
Origine : Fichiers produits par l'(les) auteur(s)
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