Help:MP3 tutorial
You may have noticed the Template:Populace has a section for adding a Name Pronunciation. This is done via uploading a file in MP3 (audio) format.
An easy way to quickly make this is to use https://online-voice-recorder.com/, a website that will access your computers microphone, record a file, and download in MP3 format. Your computer will need to have a microphone installed, such as one on a headset, or built into a webcam.
One you have the MP3 file on your computer, name it with your SCA name (and possibly the suffix pronunciation), ideally without using any spaces - you can use the underscore character (_) instead, or just omit them. So, for example, you might use "Sir_Loin_of_Beef_pronunciation.mp3", or perhaps "SirLoinofBeefpronunciation.mp3".
Then, use the upload file link on the left hand menu to upload the file, and select one of the "own work" options for copyright. The process is very much like Help:Uploading_images_step-by-step, except that you are uploading the MP3 audio file instead of an image file. Take note of the file name the wiki used when you finish uploading, and copy it.
Finally, you'll want to make sure your template includes the following line, but with your file name replacing the placeholder file name.
| nameprnounciation = [[File:Your_name_pronunciation_here.mp3]]