Volume Increase on some voices

I just grabbed the Zect voice from the PSO2Comi Memory shop, and it's great! Except it's far too quiet, I cannot hear any of the lines midgame without intently listening.

Another example is Lukot's lobby lines, you can barely hear her when you talk to her, but all other characters are fine.

There are probably other examples.

Any possibly some of these voices could get looked over? Thanks!

@Matt As I haven't bought the memory voices yet, I can't say one way or the other on that. But Lukot sounds fine to me in lobby. All voices sound like there set at the same audio level. Have you tried turning down BGM. It seems to love to fight with the in game voices, especially in cutscenes. Casra always sounds like he's whispering unless I turn down the music.