I did a fresh install of EndeavourOS earlier and are new to Arch. I am running into a problem where the headphone output sound is playing through the input, meaning whatever sound I make on the PC, is played through my mic as well. I am unable to hear my own voice. I have tried looking in various places for a solution for a bit at this point and can’t find anything. Let me know what info I should put in here so I can get help.
Sounds like your input volume is to high maybe try adjusting it
Unfortunately, adjusting input volume does not seem to do anything
Welcome to the community @Axol 
This will provide some system specifications:
inxi -MSAxx --za
There’s more I’d like to request, but it may depend on what desktop environment you are running (eg: KDE, Gnome, etc). That command above should also specify what desktop environment you’re using.
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Here is what I got:
System:
Kernel: 6.12.10-arch1-1 arch: x86_64 bits: 64 compiler: gcc v: 14.2.1
Desktop: KDE Plasma v: 6.2.5 tk: Qt v: N/A wm: kwin_wayland dm: SDDM
Distro: EndeavourOS base: Arch Linux
Machine:
Type: Desktop System: ASUS product: N/A v: N/A serial: <superuser required>
Mobo: ASUSTeK model: ROG STRIX X870E-E GAMING WIFI v: Rev 1.xx
serial: <superuser required> part-nu: SKU UEFI: American Megatrends v: 1001
date: 01/10/2025
Audio:
Device-1: NVIDIA TU116 High Definition Audio vendor: Gigabyte
driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 8 bus-ID: 01:00.1
chip-ID: 10de:1aeb
Device-2: Advanced Micro Devices [AMD/ATI] Rembrandt Radeon High
Definition Audio vendor: ASUSTeK driver: snd_hda_intel v: kernel pcie:
speed: 16 GT/s lanes: 16 bus-ID: 79:00.1 chip-ID: 1002:1640
Device-3: ASUSTek USB Audio driver: hid-generic,snd-usb-audio,usbhid
type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 5-6:4 chip-ID: 0b05:1b9b
API: ALSA v: k6.12.10-arch1-1 status: kernel-api
Server-1: PipeWire v: 1.2.7 status: active with: 1: wireplumber
status: active 2: pipewire-alsa type: plugin 3: pw-jack type: plugin
Server-2: PulseAudio v: 17.0-43-g3e2bb status: active
with: pulseaudio-alsa type: plugin
As for desktop environment, I use KDE.
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So we can visually see what might be happening, could you install qpwgraph. It’s a graphical tool that’ll let you see how your audio input/output is connected.
Here’s mine, for example:
To install it:
sudo pacman -S qpwgraph
Run that, try to organise things (drag the boxes around) so the connections are clear. Then take a screenshot and share.
Later if you want to uninstall it:
sudo pacman -R qpwgraph
That’s fine, it’s probably just that nothing is currently playing. If you could replicate the what you’re doing when the issue arises, that would probably have a clearer picture. Let’s put that aside for now though, I have another thought.
Could you share a screen shot of KDE’s audio settings:
System Settings > Sound
And describe what you’re using to hear and speak. Eg, headphones with a built in mic. How are these connected? USB? Separate jacks for output / input, or a single jack for both? Where is this connected on your PC?
What I suspect, is it’s a duplex setting.
Mb, I forgot to include what I use to hear and speak. I use headphones with a detachable mic. I do have to use a headphone splitter if that means anything.
Under Speakers there, try setting the profile to “Analog Stereo Output” only.
With the Digital Input (S/PDIF), that should not have “Analog Stereo Output” included in its profile. Can you click that drop-down there and screenshot the other options?
Is any part of your audio connected via USB? Just trying to figure out why it’s set to “Digital Input”. How is your mic connected, specifically?
The “Digital Input (S/PDIF)” disappears when I turn on “Analog Stereo Output” only.
Can you enable the TU116 High Definition Audio Controller. Select an analog input option, if your mic is connected via audio jack.
There are no USBs used. As for how my mic is connected, I just attach the mic attachment onto the side of the headphones. I could send a link to the specific ones if it would help.
Some specific details of the headphones / mic might help.
How the headphones / mic are connected to the computer is the main thing I’m hoping to understand. I’m guessing at the moment, with my suggestions.
The only option it gives me is “Digital Stereo (HDMI) Output”
Oh I misunderstood, my bad. As I mentioned, I have to use a headphone splitter, and i just plug the jacks for both mic and audio directly into the motherboard on the back of my PC. I can send a photo if it helps.
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If that’s not too much trouble, that would be clarifying 
