Hello, I use headphones, and have tactile transducers on my chair. This makes the audio sound louder and feel more intense. This is good for my ears and my neighbours. This setup requires 2.1 output. I tried the GNOME-Settings to set the output to 2.1. That option was not available. I also tried alsamixer, paprefs and pavucontrol, to no avail. I played around with hdajackretask, and finally, after overriding both the Pink Mic port to Center/LFE and the Blue Line In to Back, I can select 2.1 audio in the GNOME-Settings. This was difficult to setup. Then, however, I had the full-range signal on both my headphones and on the synthesized LFE channel. This means I hear voices in my chair. To prevent that, I set the lfe-crossover frequency, but then I lose the bass in my headphones. Both is bad. Now I found the patch "Add option to disable highpass-filter on non-lfe channels." by Markus Ebner at https://pw-emeril.freedesktop.org/patch/171424/ This patch, if it works at advertised, would solve my problem. But the patch was rejected. I would comment there, but because the websites certificate is invalid, I cannot create an account to comment, since Google's reCAPTCHA refuses to work. To summarize, for my setup I need the full-range stereo signal on my headphones and a low-pass filtered LFE signal for the transducers. Is there a way to do this with PulseAudio? To add on this question, my Denon AVR X3100W has individual cut-off frequencies for each channel, and the subwoofer has its own low-pass frequency. How can I have this fine-grained control with PulseAudio? Best regards, Christian Weinz
