Whoops, sorry. It is late, the proof of concept .alsarc is here https://ubuntuforums.org/showthread.php?t=2339802 On Thu, Oct 13, 2016 at 1:24 AM, Dylan Taft <dylanetaft at gmail.com> wrote: > I need to use a LADSPA per channel to correct an issue with audio > output on an 2011 iMAC 27. By default, audio is very overdriven and > sounds very poor. The iMac has 4 speakers. I think I figured out > what is going on - there is no hardware bandpass filtering, so bass > tones and mid tones sent to the high register speakers are overdriving > it and probably damaging it. OSX must do upmixing and low + highpass > filtering in software. > > > I have a proof of concept Alsa config file > http://askubuntu.com/questions/43950/how-can-i-apply-a-ladspa-plugin-to-a-pulseaudio-stream > > How would I either get a PulseAudio sink set up to point at my custom > ALSA PCM, or, how would I apply a LADSPA plugin, with different > parameters for each channel, to a PulseAudio sink? > > Sorry, I am stuck, appreciate any help. Thanks.
