Is there a way to split audio from different tabs in the same browser?

At my old work they had a proprietary way of splitting audio to be like source one is 100% left, source two is 50% both, and source 3 100% right with availability to add more sources and customize the split in increments of 10%. We used one of David Clarks headsets that allowed the audio to be received this way.

I'm wondering if there's anything out there I can use to get a similar experience with (browser extension, tool found on GitHub, physical product, whatever works). I find myself wanting to have my browser tabs audio split in different directions so I can more easily ingest multiple audio sources, such as 1 for news, 1-2 for twitch, and maybe another for YouTube.

When I search on my own all I'm finding is stuff for recorded files or just changing the volume of different browser tabs, none properly splitting the audio. I don't want to have a different browser open for each one and split the audio that way.