Almost everywhere. There’s a ton of snaps on Youtube and Soundcloud to be found by you. If you’re having a hard time anyway, I can even recommend you a place to download this song from. And the quality is quite great there. All the parts are present. Here’s the website to download the darkest dungeon narrator soundboard https://darkest-dungeon-soundboard.mp3juices.red/
To play an MP3 (https://nuttyapps.com/juice-mp3-paw/) file that is sent in an HTTP response, a client such as a web browser or media player will typically need to have an appropriate plugin or codec installed to handle the MP3 format.
salesforce imposes size limits on http response handling, so this probably wouldn't work, or at least work well.
Paul, thanks for your response.