Dr. Peggy Renwick and Rachel Miller Olsen have co-authored an article in Journal of the Acoustical Society of America, using data from the Linguistic Atlas of the Gulf States. In the article, which is part of a special collection on Advancing Methods for Analyzing Dialect Variation, the authors analyze the acoustics of vowels by nine speakers from southeastern Georgia.
Renwick, Margaret E. L. & Rachel M. Olsen. 2017. Analyzing dialect variation in historical speech corpora. The Journal of the Acoustical Society of America 142(1). 406–421. doi:10.1121/1.4991009.