OBS ships with rnnoise, which is like NVIDIA Broadcast, but works on any CPU. See also NoiseTorch and EasyEffects if you're on Linux.

It's pretty great, works decently, but the sad thing is the author put it out a few years ago, trained it on proprietary datasets, wrote a paper and then moved onto something else, never to be seen again. Now it's pretty much unmaintained since it requires some very specific ML and DSP knowledge to hack on.

https://github.com/xiph/rnnoise

NVIDIA Broadcast in my opinion is better, but rnnoise will do if you can't run it.

I found rrnoise to be okay; not great. Surprisingly heavy on resources, even on my M1. I use and pay for Krisp now, which is much better

Doesn't consume more than a couple percent CPU on my Linux desktop

I'd say that it works very well. So well in fact that as I reinstalled windows and watched F1 on Sunday I was surprised to see that Ferrari had managed to remove the engine sound from the drivers microphone, but at some cost to the clarity.

Turns out the background noise removal was turned on for my output too.

Wow, that’s… kind of insane. Cool. I’m gonna have to check it out.

It also completely eliminates screaming cats and babies. It's worth the price of the GPU upgrade alone.

I know that Slack and Google are slowly baking these features in, but NVIDIA are in a league of their own. AMD not having them made my GPU brand choice easy last time I upgraded.

Really telling that your assumption is that it's their kid/cat and not a neighbour's one...

Sound doesn't stop at the property line.

For the record my Burmese cats are incredibly vocal; they normally mouth off like crazy before jumping up on my lap - especially when I'm in meetings. Love them! :)

And babies? That was during lockdowns when my then wife was looking after the young one (we took turns; obviously this applies to when I was in my meetings). Didn't stop the 2-3y child from being very noisy at times.

Regardless of the source, Broadcast does an amazing job of filtering and cleaning it up. Recipients could not hear any of the background commotion.

It does work and fairly well at that. However, for the audio processing component of Broadcast, you don't necessarily need an RTX card. There's an official version that does the work in plain old CUDA. Might not be quite as efficient, but also works just fine.

Yep; I used RTX Voice or what it was called on my old 1080TI. With my 3070 I'll use both voice and video, to just slightly blur the background.