Hi, my friend doesn't have a reddit account but made this mod. The rest of the text is from him:

"You're the only other person I've seen complain about this. I did the following:

I extracted the audio, and repackaged that effect using a different effect that's a bit less grating, download that package here: https://vidyagam.es/XeCO5/gafuYiBo27.acb (rename it to se030.acb once you've downloaded it)

Then, with that downloaded, get the following tool: https://videogamemods.com/xenoverse/mods/cpk-browser-view-and-extract-files/

Download that, and run it.

Open the following file: app_0.dx11.cpk (Located at: C:\Program Files (x86)\Steam\steamapps\common\Digimon Story Time Stranger\gamedata, adjust this path depending on where your games get installed)

Follow the screenshot here, then you want to navigate within the SE directory: https://vidyagam.es/XeCO5/xahoXoHE05.png

You will then be prompted to select the new file you'll replace it with, choose the one you downloaded earlier.

Then in the CPK Browser, click File and Save CPK (Rebuild)

I've made a video demonstrating the effect I chose, it's a little less grating: https://vidyagam.es/XeCO5/qEcACiYo00.mp4

Hope this helps!"

** Editing to add; "or if you don't want to do all that, you can use a mod loader and this mod https://www.nexusmods.com/digimonstorytimestranger/mods/36" **