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PulseAudio/Examples - ArchWiki
https://wiki.archlinux.org/title/PulseAudio/Examples
Sound cards may have both analog and digital (iec958) outputs. Pulseaudio does not generate combined profiles by default, you can choose either digital or analog profiles. The easiest way to make both outputs available is to add a combined profile to the end of default profile configuration file:
PulseAudio startup too quiet IEC958 / Multimedia and Games ...
https://bbs.archlinux.org/viewtopic.php?id=246216
Re: PulseAudio startup too quiet IEC958 I also encountered this problem that is because of kmix, my solution is install alsa-utils, and use alsamixer to change the setting. last, store the setting by "alsactl store" command.
pulseaudio - no sound on iec958 S/PDIF input - sound card ...
https://unix.stackexchange.com/questions/677207/no-sound-on-iec958-s-pdif-input-sound-card-usb-cm106
The digital input iec958 is visible within graphical pavucontrol or pulse command line answers. But the sound meter (vumeter) remain empty, no sound, no signal. I do not have any other sound device to check the FreeBox player S/PDIF output.
sound - How to disable S/PDIF (IEC958) profiles in …
https://askubuntu.com/questions/1364580/how-to-disable-s-pdif-iec958-profiles-in-gnome-and-pulseaudio
I'm using sed here to match the line that contains [Mapping iec958-stereo] and the 5 lines after it to comment them out (prefix with #). I'm also creating a file named default.conf-backup because things usually get messy and we don't want to search and reinstall the corresponding package. After that I'm restarting PulseAudio for the current user.
Problem with 5.1 AC-3 through Alsa, Pulseaudio on SPDIF ...
https://askubuntu.com/questions/483555/problem-with-5-1-ac-3-through-alsa-pulseaudio-on-spdif-ubuntu-14-04
Finally managed to set this permanently, I had to add the following command in the startup applications. pacmd set-card-profile 0 output:iec958-ac3-surround-51. To verify the name of you sound profile, run following command, u'll get …
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