this post was submitted on 17 Dec 2023
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I took https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/master/src/daemon/filter-chain/sink-virtual-surround-7.1-hesuvi.conf, and replaced hrir_hesuvi/hrir.wav with the full path to atmos.wav, which I downloaded from https://airtable.com/appayGNkn3nSuXkaz/shruimhjdSakUPg2m/tbloLjoZKWJDnLtTc
Here seems to be a walkthrough of it: https://forum.endeavouros.com/t/virtual-surround-sound-in-pipewire/24958
I also tried jconvolver in the past, but often hit issues when combined with pipewire. Pipewire's native virtual surround support just works when configured correctly.
You can change the default sink to go to the virtual surround device this way:
There will be a way to set the default in the pipewire config files (~/.config/pipewire/pipewire.conf.d/*), too.
I use "catia" when I want to do manual audio routing, and I guess similar is possible with pavucontrol.
Lots of links and names. I think I know how I'm spending my afternoon. Thanks!