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Linux: How To enable HRTF virtual 3D surround sound with ...
https://frankbaier.medium.com/linux-how-to-enable-hrtf-virtual-3d-surround-sound-with-pulseaudio-5b74a6493a66
This is the file, which is used by the pulseaudio module. You need to edit the following PulseAudio file. sudo nano /etc/pulse/default.pa. Almost at the end of the file, you need to add the following module. load-module module-virtual-surround-sink. This module comes with more parameters to add and to enjoy a much better virtual 3D surround sound.
How to make pulseaudio use a surround profile? - Raspberry ...
https://raspberrypi.stackexchange.com/questions/123801/how-to-make-pulseaudio-use-a-surround-profile
However, when I try to play a test file in Kodi, MPV or VLC, the surround channels are played trough the front loudspeakers and the subwoofer is silent. I suspect this is because pulseaudio wrongly offers just a Digital Stereo output (a portion of pacmd list-cards):
audio - How do I configure PulseAudio for 7.1 Surround ...
https://unix.stackexchange.com/questions/111428/how-do-i-configure-pulseaudio-for-7-1-surround-sound-over-hdmi
Restart PulseAudio: pulseaudio -k, as your normal user, assuming you're using per-user daemons (the default). Start it up again, even a simple aplay -l will work. Switch to the 7.1 profile. Personally, I used pactl set-card-profile 0 "output:hdmi-surround-71" to do this, but a GUI will work perfectly well, too. Run speaker-test -c 8 -t w. It ...
PulseAudio/Examples - ArchWiki
https://wiki.archlinux.org/title/PulseAudio/Examples
Many people have a surround sound card, but have speakers for just two channels, so PulseAudio cannot really default to a surround sound setup. To enable all of the channels, edit /etc/pulse/daemon.conf : uncomment the default-sample-channels line (i.e. remove the semicolon from the beginning of the line) and set the value to 6 .
Having Pulseaudio downmix Surround 5.1 to Stereo | Blog of ...
https://thedarkgod.wordpress.com/2013/08/26/having-pulseaudio-downmix-surround5-1-to-stereo/
After a good deal of gnashing of teeth, I finally managed to get Pulseaudio to Do The Right Thing™ (which is what the thing I want, not what it wants): downmixing Surround 5.1 to Stereo.. The problem was simple: I had a lot of lossless FLAC files containing Surround 5.1 audio (that is, 6 channels).
PulseAudio - LinuxReviews
https://linuxreviews.org/PulseAudio
PulseAudio. PulseAudio is a standard audio stack used by as good as all Linux distributions. It places itself between end-user software and the kernels ALSA audio stack. It can be used for mixing, per-application volume control and network audio. It has a history of criticism for it's high CPU use and many, many bugs.
Modules – PulseAudio
https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/
This allows, for example, creating a virtual stereo sink that only plays to the rear channels of a surround master sink. Whenever a stream has different channels than the sink it connects to, pulseaudio may apply a remixing algorithm. This remixing is also applied to the virtual stream created by module-remap-sink, unless the "remix" argument ...
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