ESCA/NATO Tutorial and Research Workshop on Speech Under Stress Lisbon, Portugal September 14-15, 1995

Spectrum-related variabilities in stressed speech under laboratory and real conditions

Robert Ruiz (1), Emmanuelle Absil (2), Bruno Gramatica (1), Bernard Harmegnies (2), Claude Legros (1), Dolors Poch (3)

(1) Laboratoire d'Acoustique, Université Toulouse-Le Mirail, France
(2) Laboratoire de Phonétique, Département de communication parlée, Universite de Mons-Hainaut, Mons, Belgium
(3) Laboratori de Fonetica, Departament de filologia espanyola, Facultat Lletres, Universitat Autonoma de Barcelona, Spain

Emotional stress induced by various types of situations leads to vocal signal modifications. Previous studies have indicated that stressed speech has a higher fundamental frequency Fo and presents noticeable changes in the spectrum of vowels.

In this paper, spectrum-related variations are studied. All the corresponding spectrum-related indicators are applied to stress detection in a laboratory situation (Stroop's psychometric stress test) and a real situation (Cockpit Voice Recording) inducing emotional disturbances.

Full Paper

Bibliographic reference.  Ruiz, Robert / Absil, Emmanuelle / Gramatica, Bruno / Harmegnies, Bernard / Legros, Claude / Poch, Dolors (1995): "Spectrum-related variabilities in stressed speech under laboratory and real conditions", In SUS-1995, 49-52.