The Witcher 3: All Voices is a collection of dialogue and voice lines from The Witcher 3. All of the files are in OGG format and can be used in any audio or video project. It has an XML file that you can use to locate the dialogue with the required lines spoken by the NPC. It also includes a list of all the dialogue and voice lines that can be used in your project. You can use any of the files for free, but you will need to pay to obtain some of them. You can download the files individually from the downloads tab.