Do you know if there have been any of these kinds of recreations done on contemporary languages/dialects/accents, or I guess even created ones, to test the accu

Do you know if there have been any of these kinds of recreations done on contemporary languages/dialects/accents, or I guess even created ones, to test the accuracy of these methods? It sounds like something that should obviously have been done, but my naive googling isn't getting me anywhere so far.