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PC PC in-game Voice Chat Investigation


Tripwire Interactive Community Team
Staff member
Mar 11, 2016
Killing Floor Discord :)
We are investigating reports of remaining voice chat issues in game. Could you please provide us with the following:

  • What exactly is the issue you are experiencing?
  • Screenshots of windows audio settings (input & output, control panel)
  • Screenshot of Steam audio settings
  • Screenshot of KF2 in-game audio settings
  • Attach dxdiag (launch dxdiag.exe and export)


Grizzled Veteran
  • Sep 20, 2015
    Here's how Voice Chat Receive Volume Slider reacts for me in the game.
    - Below 25% of the slider, i can't hear anyone using a mic
    - At 50% the voice chat is now audible
    - From 50% to about 65% the audio is more or less crisp and audible
    - from 65% to 100% and it sounds like someone shoved the microphone into its mouth and began screaming into it, as if the voice input is just clipping hard.

    Edit: in the new volume controls in steam, moving the input volume gain to the right, produces same results as i've demonstrated in the video


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    Grizzled Veteran
    May 14, 2009
    I can't hear or talk anymore at all, but this is because Proton apparently doesn't work with the new voice middleware.. Too bad you never released the Linux client you lied about. Now I have no VOIP at all in game. I guess it is again up to Valve to fix your $_&#!, I have hope, they do an incredible job.
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    Grizzled Veteran
    Feb 19, 2010
    The implementation of Vivox caused all players to sound like screeching ravens using a 200% mic boost. As of fall Beta 1 (and further) I can barely hear players. All voice receive sliders are set to 100%, KF2's in-game sfx was set to approx 30% in an attempt to hear these "whispering" players. This issue is exclusive to KF2.

    Note regarding DxDiag: Realtek Digital Output and LEN Y27q-20 NVIDIA High Definition Audio are inactive. The only active audio device is a USB-connected Steinberg UR22mkII.


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    FNG / Fresh Meat
    Nov 15, 2020
    I've never heard anyone use their mic in game. It can't be one guy having their mic set up wrong because I've had it happen many times now where someone speaks (voice chat name popup) but I can't hear any voice chat.


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    May 26, 2015
    I have the same issues in Steam and Epic. The mic works in Windows and game settings, but not while in a match. Any solutions?
    This has been a problem for me for a long while. I thought the problem might be from using an older head set, but I bought a Logitech G635 gaming headset recently and still have the same problem.
    I would upload snapshots of my settings, but they wouldn't be adding anything to what is already obvious.
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    Went to check my latest Launch.log and saw the following lines:

    [0014.34] Log: FVoiceInterfaceVivox::SetVolume(3.000000)
    [0014.34] Log: FVoiceInterfaceVivox::SetMicVolume(50.000000) rescaled to 47

    What does 3.0 and 50.0 stand for? Team mates say that they can hear me well but I can barely hear them. My current settings are exactly the same as in my old post: https://forums.tripwireinteractive....oice-chat-investigation.2336388/#post-2344072 Every possible voice receive slider is set to 100% and other sounds are approx 30%.
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    FNG / Fresh Meat
    Mar 31, 2020
    My friends and I always use Voice in game. Since the Vivox, we cannot. There was one time it worked and now it does not, changed all my sound settings, checked the server files, and my local files. Agree with the loudness, had to lower mic settings so we would not overdrive the one time it did work. Mic works with every game and also in discord but not in game. So far the "big" let's play with Epic has jacked up voip and the ability for admins to kick/ban trolls.....Good job Tripwire, made a GREAT game pretty much almost no fun to play at all, and I have thousands of hours playing it....So its not like I am a hater.
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    FNG / Fresh Meat
    Feb 11, 2021
    Hello. My game has been having problems with receiving voice chat since I started playing. No matter what options I try I always get total silence when the pop up sign showing a teammate is using a mic appears. I have attached the requested screenshots, please let me know if any of them are incorrect.


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    Jun 4, 2009

    Mic is loud and clear in every other program, but complaints of being whisper quiet in game. I play with friends and we have to use discord, as no one can hear each other - no matter what we set, everyone (including random players) is whisper quiet or never responds.
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    Mic is loud and clear in every other program, but complaints of being whisper quiet in game. I play with friends and we have to use discord, as no one can hear each other - no matter what we set, everyone (including random players) is whisper quiet or never responds.
    Remember to provide screenshots of Steam mic settings and KF2 in-game mic settings. Kittenmittens provided instructions in the first post.
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