SUMMARY The audio manager sound checker is the applet in the system manager used to test the audio of each speaker. When the Subwoofer speaker is tested user can hear a kind of indistinct noise from that speaker. However using this command from terminal speaker-test -Dplug:surround51 -c6 -twav the user can hear the typical sound voice indicating the speaker works rightly telling: "Subwoofer". Is it possible to add a voice-sound also to the manager sound checker via Subwoofer button telling: Subwoofer replacing the indistinct noise? thanks STEPS TO REPRODUCE 1. open system manager 2. to access the audio manager 3. test the subwoofer speaker 4. open terminal 5. run speaker-test -Dplug:surround51 -c6 -twav 6. hear the voice when subwoofer is invoked. OBSERVED RESULT indistinct noise from subwoofer speaker EXPECTED RESULT voice from subwoofer telling "subwoofer" SOFTWARE/OS VERSIONS Operating System: KDE neon 5.19 KDE Plasma Version: 5.19.5 KDE Frameworks Version: 5.74.0 Qt Version: 5.15.0 Kernel Version: 5.4.0-48-generic OS Type: 64-bit
For the speaker test sounds we reply on the freedesktop sound theme. For subwoofer that would be the "audio-channel-subwoofer" sound. That seems to be missing on my system (checked with `ls /usr/share/sounds/freedesktop/stereo`). When the sound isn't available we fall back to "audio-test-signal", which is likely the indistinct sound you are hearing. Ultimatley this seems to be an oversight in the freedesktop sound theme. I filed https://gitlab.freedesktop.org/xdg/xdg-sound-theme/-/issues/7 for this. Let's see if this can be resolved there before we think about working around this
Looking at the speaker-test code it appears that it is using the Rear Center sound for the subwoofer: https://git.alsa-project.org/?p=alsa-utils.git;a=blob;f=speaker-test/speaker-test.c#l734
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-pa/-/merge_requests/29
Git commit bc79ca3289903cb641fd29a0b9cf8da17427421a by Nicolas Fella. Committed on 10/11/2020 at 13:59. Pushed by nicolasfella into branch 'master'. [kcm] Use rear-center sound for subwoofer test There is no audio-channel-subwoofer sound in the freedesktop theme. Use rear-center instead like speaker-test from alsa-utils does M +2 -1 src/kcm/package/contents/ui/Advanced.qml https://invent.kde.org/plasma/plasma-pa/commit/bc79ca3289903cb641fd29a0b9cf8da17427421a
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!
*** Bug 433088 has been marked as a duplicate of this bug. ***