So, after some testing I have a mod that (should) work for everyone. After playing the 20th Anniversary Edition of Duke Nukem, I liked how Jon St john re-recorded all the original lines with (obviously) better quality, and I wanted it in other Duke Nukem ports. eDuke32 was easy, so I decided to mod the PS Vita version, and after much trial and error, I have the mod working.
Now, due to the forums policy on "warez" I don't think I can post the already packaged duke3d.grp file, but I believe I can post a link to the audio files and tell you how to do them yourself.
1.) Download the audio files here:
https://mega.nz/#!mZsGzbbI!g8_NF3SzGNkQ ... rIaPhtJmnM
and extract them to a temporary folder on your PC
2.) Download the Group File Studio here:
http://dukertcm.com/knowledge-base/down ... /gfs31.zip
3.) You'll need to get a duke3d.grp file, I pulled mine from the Steam Megaton Edition, but you can also grab it with VitaShell and a FTP client, such as FileZilla. The duke3d.grp file will be located in "/ux0:/app/PCSB00437/Game" on your Vita.
4.) Open the duke3d.grp file with Group File Studio, and right-click on the "Sound Files" section, then click "Insert Files". Navigate to your temporary folder, and using Ctrl-A or shift-click, select all of the .voc files you extracted in the first step, and click OK. Now, it will ask you if you want to replace the files already in the .grp file one by one, so you'll need to click Yes for each, however, it doesn't take that long. After you have finished inserting the files, click save and wait for the process to complete.
5.) Once that's done, send the duke3d.grp file over to your Vita using the FTP client and VitaFile to "/ux0:/app/PCSB00437/Game", and enjoy the new better quality voice of Duke Nukem!
