Luigi's mansion 3 does something similar, I wouldn't be surprised if it's using the same or similar technology under the hood. For one of the characters, bits

Luigi's mansion 3 does something similar, I wouldn't be surprised if it's using the same or similar technology under the hood. For one of the characters, bits of the dialog sounded like incoherent Japanese and I could make out some words. I haven't played in a while, but I recall different characters had different sounding accents too. I like this approach for in-game dialog!