Things I do when I talkloid Avanna:
-First and foremost, step out of my comfort zone, haha (my comfort zone being just basing her speech off of my American accent despite her very Irish accent; this is an accent I did not grow up around so it's proving to be an interesting challenge).
-"Em" and "eh" as thinking sounds, rather than the "um" and "uh" I'm used to as an American, as that is generally the thinking sound Irish people use
-I often have her speed up, slightly drop in pitch, and somewhat alter pronunciation on unstressed syllables to add to the "lilting" feel of her speech- e.g. "Thank you for finding this" being phonetically more like "Thank you fer findin' this". I tend to focus more on shortening unstressed syllables than lengthening stressed ones, though I guess as a result she tends to wind up talking kinda fast
-I generally base her intonation off of the dialect of her voice provider, which is sort of a gentle downward pattern common in many (Southern) Irish dialects, as well as anything similar I can find. However, I give Avanna's speech a bit more "shimmer" to give her a bit of a "voice acted" feel compared to her VP's somewhat flatter intonation. Maybe some slight "uptalk" on occasion (more of a brief upward intonation than the more drawn-out "valley girl" way), which is something I've noticed in her VP as well
-I try to stick to things I've actually heard Irish people do in my research and be mindful of speech patterns I've heard, rather than basing it more off Hollywood stereotypes (and all the bad accents that come with that, haha), though I try to give her a slightly "voice acted" sound as I've said.
Why do I think about this so much? Because in addition to my interest in tuning originals and covers, I've always had an interest in making Talkloids as well, though mine are intended to sound like natural conversations or movie scenes or something, somewhat similar to like, Iruna or eL.