Didn't work. Had to install version 1 then overwrite dll with Version 2. Now it works just fine.
I tried ImDino's review/comment below but his instruction was incorrect and I couldn't get it working. Nevertheless I thank you ImDino because of what you said hinted me to the right direction and i was able to fix it for myself.
Those who want to know how to get it running, follow these steps instead
Skip Step 1-3 if you've already downloaded and installed v1 before
1. Navigate to '
https://obsproject.com/forum/resources/stream-recording-start-stop-beep-srbeep-unsupported.392/'
2. Click 'Go to download' to download version 1
3. Move the SRBeep Folder in 'Downloads\SRBeep\windows\obs-studio\data\obs-plugins\' to 'C:\Program Files\obs-studio\data\obs-plugins\'
4. Rename the folder you just moved to 'SRBeep2'
5. Navigate to '
https://github.com/eebssk1/SRBeep2/releases/tag/v2.2.0'
6. Download 'SRBeep2.dll'
7. Move it to 'C:\Program Files\obs-studio\obs-plugins\64bit'
8. Delete SRBeep.dll from 'C:\Program Files\obs-studio\obs-plugins\64bit'