Thanks for your reply! load-module module-alsa-sink device=upmix20 Hmm, when I put that in my default.pa, and set the profile to off for my card - and restart pulse, speaker-test hangs. Other apps will just not play sound. After closing everything and reopening, it seems to work. Maybe I should reboot - other apps could be grabbing the soundcard before pulse gets it? I would NOT want to use dmix underneath pulse, right? Would probably add a lot of latency. Is it possible or a _good_ idea to move the LADSPA configuration to run directly in Pulse instead of Alsa? https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Recipes/ActiveSpeakerCrossoverLADSPA/ There is one example of that, but it's a bit hard to understand. Are you aware of any better documentation? Looks like you split the main channel into 4 mono channels, apply the ladspa filter to each, then recombine. Is that the most sane way to do this? https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#index12h3 Are the channel names what is listed in channel-map in pactl list?
