Assimilatory and blending processes in connected speech in English and Catalan in a variety of conditions (slow vs fast speech, functional vs lexical words and oral vs nasal segments) were studied. The intergestural adaptation of alveolar+dental/alveolopalatal clusters were analyzed with simultaneous EPG, acoustic and EGG data. The results show a categorical articulatory shift of Cl to the constriction location of C2 in clusters involving the same articulator (tongue tip), which is argued to reflect a reorganization of the alveolar articulation at the gestural level. Alveolar+alveolopalatal clusters, involving two independent articulators (tongue tip and tongue body) show gradient blending processes reflecting overlap of articulatory trajectories at the vocal tract level. Blending of constriction degree in clusters tends to be preservatory.
Bibliographic reference. Solé, Marie-Josep / Estebas, E. (1995): "Connected speech processes: a cross-linguistic study", In EUROSPEECH-1995, 2239-2242.