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.
