Prominenza frasale e tipologia prosodica : un approccio acustico

Ad un esame degli studi sulla prominenza prosodica si riscontrano notevoli problemi di uniformità terminologica, soprattutto a livello dell’identificazione dei fenomeni che fanno parte dell'ambito di indagine. Numerosi studiosi hanno sottolineato più volte come nelle analisi dei fenomeni prosodici si trovi una rilevante eterogeneità tra i termini utilizzati per indicare lo stesso fenomeno, che, da studio a studio e nel tempo, tendono ad assumere differenti connotazioni e riferimenti (Bertinetto, 1981; Jensen, 2004; Spencer, 1996; Taylor, 1992; Wightman, Ostendorf, 1994). Sembra quindi opportuno, prima di affrontare la descrizione vera e propria del lavoro svolto, definire chiaramente il fenomeno oggetto di questo studio, la prominenza frasale nella lingua parlata, identificandone le proprietà e i tratti fondamentali che contribuiscono ad una sua definizione. Una delle più note e citate definizioni di prominenza di deve a Terken (1991: 1768):

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