Attrito e transfer tra dialetto e italiano regionale. Quantità e lunghezza vocalica nel parlato intramurario di Bologna

We present the results of three production experiments on stressed vowel lengthening in the linguistic repertoires of Bologna in order to ascertain: 1) if contrastive vowel length (CVL) is maintained in the urban dialect of Bologna as currently spoken within the town walls; 2) if the dialect’s contrastive length has been transferred as phonetic lengthening to the variety of regional Italian due to the close contact of the two reperoires; 3) if the phonetic lengthenings in Bolognese regional Italian are comparable or greater than in other varieties of Italian that miss any relationship with CVL in the related dialect, as in Florentine. Results show that CVL is consistently maintained in Bolognese dialect, while our strong hypothesis of a phonetic transfer of stressed vowel lengthening in Bolognese regional Italian is not supported.