1- Unpack your PAK achive 2- Go to Audio/ and select your desired file 3- For example: Audio\Tutorial\ENG 4- Now you need you need to select files which extension is UEXP and which name doesn't have "Cue". In my example, I am gonna grab "sgkn034.uexp" 5- Right click and open it with a hexeditor (HxD or whatever you want) 6- Select and and copy all bytes (from offset 0xd9 or for from the first OggS to the end of the file) 7- Open a new file in HxD and paste all the bytes you copied 8- Save as with the name audio.ogg (the extension must be ogg) 9- Now play audio.ogg with VLC media player
Sorry for the rushed explanation as I am busy now. I'll update it with images later.
This reminds me of how we used to make SFV play custom music back when that game first released. Of course that was copying from a music file and pasting it into the .uasset through the hex editor. So almost like the reverse of this.