[SOLVED] How to set ffmpeg output location? (and batch conversion)

So I have some .opus files thst I want to convert to .mp3. I used ffmpeg CLI with a script from https://ottverse.com/convert-all-files-inside-folder-ffmpeg-batch-convert, I used the wav to mp3 one but put opus instead of wav. The output is always in the same folder, and I want it to go to another, how can I do it? (windows 10)

SOLUTION: https://lemmy.world/comment/6337795