Soundproblem. Sound is scrambled (audacious, vlc, firefox) ; Testsound is ok ; ubuntu 20.04 lts
Hi! The sound from my PC is what I would describe as scrambled, the frequencies of voices seem to be affected the most - that is with the exception of the Testsound, which appears to be just fine. That makes me suspect, that it's not entirely a soundcard-problem.
It occured on 16.04 lts first and upgrading to 20.04 lts didn't fix it. The actual soundproblem is hard to describe, which makes it hard to search for. Physical problems with the jack or the headphones are unlikely because of the clear Testsound - checked different headphones anyway - the same result. I went through the "soundtroubleshooting" on help.ubuntu so i'm pretty sure, nothing is set to mute, the system recognizes the soundcard, the soundmodules are installed, and I found out that my soundcard was at least supported by ubuntu 14.04 , though it's not on the list on alsa-project.org Information: lspci Code:
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06) Code:
*-multimedia Does anyone have an idea, what the problem is and how I can fix it? I am happy to post more information if neccessary |
It might have sth to do with pulseaudio.
Let's try: Code:
systemctl --user -n999 status pulseaudio |
OK.
systemctl --user -n999 status pulseaudio: Code:
● pulseaudio.service - Sound Service Code:
lines 1-11/11 (END)...skipping... Found this errormessage: Quote:
Does any of it help? |
No, i don't think that error is relevant to your problem.
I still think pulseaudio is the culprit though; or at least, it's the first place to look. Try this: Code:
systemctl --user stop pulseaudio |
Thank you very much for your answer!
After stopping pulseaudio, waiting e few seconds pulseaudio --log-target=stderr --log-time --log-level=3 gave me this: Code:
( 0.000| 0.000) I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted systemctl --user -n999 status pulseaudio again? It instantly gave me that and froze: Code:
● pulseaudio.service - Sound Service I searched for E: pid.c: Daemon Already Running E: main.c: pa_pid_file_create() failed. suggestions were: pulseaudio --kill followed by pulseaudio --start apt remove pulseaudio chown myusername:myusername -R /home/myusername (suggested by a redditor) I did the first - no change; didn't dare to do the second (should I reinstall Pulseaudio?) and don't even understand the third. archlinux suggested setting the default audio to analog (from HDMI), but my soundsettings ARE set to "headphone - built in audio" - actually that's my ONLY option. Obviously there was a lot more, but nothing really made sense to me.Through all of this the soundproblem is still existing. Any thoughts? |
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Because sound is scrambled. That's your problem. So make some scrambled sound, watch the terminal where you started pulseaudio. Did that produce additional output? Show us. Quote:
My desktop computer does not use pulseaudio at all, nor does it require it. My laptop otoh uses pulseaudio because of bluetooth speakers. |
Sorry, I'm doing my best.
I started Pulseaudio, let Audacious produce sound, but no output in the terminal. I went on and removed Pulseaudio, but the sound is still bad. AND the testsound isn't working anymore. So I guess the problem is elsewhere btw: I ordered a new soundcard to make sure it's not a hardwarefailure |
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yes, eventually, same result.
I just found out, that when I set the balance to either left or right the sound is ok on both speakers. The old problem reappears when I set the leaver to the middle. I now realize, that the "scrambling" could be the sound of the two stereo channels interfering with each other since they both end up on both speakers... Still no Testsound via Soundsettings; works via commandline,though. Got the new soundcard - exactly the same . looking on the bright side, I now know how to get at least bearable audio... Does the channel-mix-up-info help? Seems not to be the hardware after all |
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Can you try with some run-of-the-mill earplugs/phones instead? |
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That' that solved. @ondoho: Sorry for the commotion and thank you for sticking with me! |
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