>>64039460How to make a file with audio:
Choose an image/webm file
Choose an audio file (.ogg recommended but .mp3 etc generally also work)
Upload your audio file to one of the file hosts below (catbox.moe is recommended)
Grab the resulting audio link and encode it here
You should end up with something like https%3A%2F%2Ffiles.catbox.moe%2F76o66i.ogg
Add the encoded audio link to the image's filename, in the format [sound={url}]
Example: [sound=https%3A%2F%2Ffiles.catbox.moe%2F76o66i.ogg].png
The audio tag may be anywhere in the filename, with text before or after it
Upload your image to 4chan