>>37229556I can tell you my stupid way for video (phone)
1. Screenrecord moment
2. Edit
3. Convert to webm (I use a site, do not delete original)
4. Remove sound (I use another site delete previous)
5. Get mp3 from the original mp4, can be done first desu
6. Catbox audio
7. "Encode" by hand (just make / -> %2F , delete the http shit its not needed anyway)
8. Rename audioless webm like: name [sound=source]
And done, soundposts you can make anywhere. I've made them like this for over a year now