Hello! So I have been working on a cover of WAA!!!! from Omoi using Itsuki and Teto. I am halfway done and pretty happy everything
, except the WAA sound(right after 8 second mark in the youtube video). I just could not replicate it however much I try. 
My best is this, with both harmonizing
Itsuki:

Teto: All of them are the default color, but I have also tried different combinations without success.

In the zip attached here (waa_help.zip) I have also added how it sounds now, both raw and processed, as well as the singers separated. Also a clip of how the original sounds(target).
Can someone please help me with replicating the sound?
Since it is I think very important for the song. Not sure if it is even possible tbh.
I don't mind changing Utau especially for the WAA section. Any suggestion is welcome.
Thank you!!!!


My best is this, with both harmonizing
Itsuki:

Teto: All of them are the default color, but I have also tried different combinations without success.

In the zip attached here (waa_help.zip) I have also added how it sounds now, both raw and processed, as well as the singers separated. Also a clip of how the original sounds(target).
Can someone please help me with replicating the sound?


Thank you!!!!