>>78153997I'm probably the last person you should ask tbdesu, my methods are extremely crude.
I record the bit I'm looking for with OBS and trim the recorded MP4 with Windows Photos legacy's video editor. I then extract the audio from the trimmed MP4 with Bitable(an online tool) before converting the video to webm(sans audio) with WebMConverter(formerly webmfordummies). I then crop the webm footage with ezgif(another online tool) and then create the soundpost with trimmed video and extracted audio via 4chan Sounds interface. I believe my methods would make most /g/eeks puke but seeing as how a lot of my posts get reposted, see
>>78153336, I don't think the how makes much difference in the end result. I'm certain there's a better way, but that's how I've been doing it.