Pulseaudio: split output and make it treat them as separate devices?

Soukyuu · 2015-09-24 17:08:22

So far, I've been using this setup, which worked fine, 5.1 sound being remixed to 2.0 as expected.

However, there are two problems with this:
- even though I select the Stereo sink as output, the sound is also playing via my Surround sink as well
- the two sinks have their volumes linked

And now, with pulseaudio 7.0, they introduced a different way of lfe-remixing, which upmixes the LFE on the Surround sink, but cut it off the Stereo sink completely as a result (even though it's set up as 2.0, not 2.1).

I've disabled lfe-remixing and the bass is back, but what I ideally want to have is basically:
- two sinks visible, Stereo and Surround, physical device hidden
- for the Stereo sink, I want the LFE to be mixed into the stereo channels when downmixing, but left untouched for stereo content (just like it did with PA6.0). Same for rear and center channels.
- for the Surround sink, I want the LFE to use the subwoofer, as standard PA7.0 behavior.
- selecting one of the sinks should only play sound on that sink, not both of them

Arch Linux

#1 2015-09-24 17:08:22

Pulseaudio: split output and make it treat them as separate devices?

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