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

Time-Related Variabilities in Stressed Speech under Laboratory and Real Conditions

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

(1) Département de communication parlée, Universite de Mons-Hainaut, Mons, Belgium
(2) Laboratoire d'acoustique, Université de Toulouse-le-Mirail, France
(3) Laboratori de Fonetica, Universitat Autonoma de Barcelona, Spain

The paper presents pitch-based analyzes of stressed speech corpora drawn from both artificial and real situations. The laboratory corpus is obtained by means of the Stroop test, the real-case corpus is extracted from the CVR of a crashed airplane. Analyzes relying on pitch are presented, and an index of microprosodic variation, (i, is introduced. The discriminating powers of the parameters used are studied in both situations by means of inferential statistics and discriminant analyzes. The results confirm the validity of laboratory experiments on stress, but emphazise quantitative as well as qualitative differences between the situations and speakers involved.

Full Paper

Bibliographic reference.  Absil, Emmanuelle / Gramatica, Bruno / Harmegnies, Bernard / Legros, Claude / Poch, Dolors / Ruiz, Robert (1995): "Time-related variabilities in stressed speech under laboratory and real conditions", In SUS-1995, 53-56.