Linux: EasyEffects (free and open-source). Source: 6 months ago

For DSP, we already can do that using something like Easy Effects[1][2]. The biggest issue is acquiring proper impulse-response data. In theory, it has to be tuned per-model, so turning basically require pro-grade equipment and a recording studio. However, apparently many people assume Dolby is using the same profile for all laptops, so just copy-paste the same file here and there. Not really sure which is the... - Source: Hacker News / 7 months ago

- Easy Effects: Effects for PipeWire applications; configure your speakers & microphones (e.g. Noise reduction filter). Source: 10 months ago

EasyEffects could be a replacement for EqualizerAPO. You can do some gain staging there if you want, as well as a bunch of other stuff. Source: 12 months ago

However if you want a one size fits all audio processor like the proprietary systems there are those as well - check out EasyEffects for Pipewire - https://github.com/wwmm/easyeffects It's almost guaranteed to be in your distros repository as well. Source: about 1 year ago

I use Loopback for virtual audio sources. This is super helpful because I create an audio source, which is my microphone and the guest's (guests') audio, and treat it as one input source. I use this audio source as the audio source for live captioning. - Source: dev.to / about 1 month ago

No, it's very easy: https://existential.audio/blackhole/ Blackhole is Free and Open Source. Also, Rogue Amoeba has a product called "Loopback". It's not cheap, but it's another alternative: https://rogueamoeba.com/loopback/. - Source: Hacker News / 8 months ago

This is the basic idea, but there are other apps which can make it easier. I prefer using Audio Hijack for the EQ part and sending it to a pass-through device set up in Loopback (which, for this use case, functions the same as BlackHole). Source: 8 months ago

- Loopback 2 by Rogue Ameba to create a pass-thru from the soundboard (Farrago, also by Rogue Ameba) to Skype so everyone can hear me talking in addition to the soundboard on the same line. Source: 11 months ago

At the risk of further complicating matters, you could try combining sources or otherwise experimenting with Loopback, an app that's designed to do all kinds of audio routing stuff. Source: 12 months ago