The power of the ardour+guitarix really shows when you have a patch bay software. Try qpwgrapg if you haven't already. It's then easy to intagrate other software, such as effects. It's then also easy to route signal to your output (ardour also has monitoring functionality). Source: over 1 year ago

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: 9 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