This WBUR / Boston NPR feature on the Boston accent quotes Jim Stanford, a linguistics expert on this regional accent who is a faculty member in the Dartmouth Department of Linguistics.
In this 2014 file photo, an electronic sign on I-93 displays the phrase "Use Yah Blinkah" in Boston. The state posted the message "Changing Lanes? Use Yah Blinkah" on signs around the city. "Blinkah" is how some Bostonians pronounce "blinker." (Michael Dwyer/AP)
In 2019, Prof. Stanford published "New England English: Large-Scale Acoustic Sociophonetics and Dialectology," the most up-to-date scholarly study of Boston-area speech patterns. To conduct the eight-year study, his team interviewed about 1,600 New Englanders. The story features some fun sound clips of native Bostonian accents. See the full story here:
https://www.wbur.org/news/2023/11/03/bostonians-eastern-massachusetts-new-england-boston-accent