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  • 1.  Disabling Automatic Mic Gain Control

    Posted an hour ago

    Hello, I'm following the guidelines to disable automatic gain control posted here:

    Deploy the desktop app (admin) - Genesys Cloud Resource Center

    The desktop app uses Chromium's WebRTC stack, which can apply automatic gain control (AGC) to the microphone input. In some environments this feature can lower the mic level inappropriately (e.g., quiet or inconsistent volume). Administrators can disable this behavior so that the app does not automatically adjust input volume.

    Windows 

    Use the same key as other desktop app settings:

        • HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
          Software\Interactive Intelligence\Purecloud\Directory

    Add a DWORD value named DisableInputVolumeAdjustment:

        • DisableInputVolumeAdjustment = 0: Automatic input volume adjustment is enabled (normal WebRTC AGC behavior). This value is the default if the value is missing.
        • DisableInputVolumeAdjustment = 1: Automatic input volume adjustment is disabled. The app passes Chromium the flag to disable the WebRtcAllowInputVolumeAdjustment feature so that the mic level is not automatically lowered.

    If the value exists in both HKLM and HKCU, the app follows the same precedence as other settings, typically HKLM over HKCU for machine-wide policy.

    Example (disable automatic mic gain control):

    "DisableInputVolumeAdjustment"=dword:00000001

    Example (re-enable, use default behavior):

    "DisableInputVolumeAdjustment"=dword:00000000

    For changes to take effect, restart the desktop app.

    I've tried pushing the registry setting for local machine as well as current user and even both at the same time and nothing changes in the client - the toggle button is still "on". Any ideas?  Is it possible it is changing the setting without changing the appearance of the toggle button in call settings within the desktop client?


    #System/PlatformAdministration

    ------------------------------
    John Wooten
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  • 2.  RE: Disabling Automatic Mic Gain Control

    Posted 46 minutes ago

    Hi John,

    A few notes on that.

    It was added as a workaround to disable the AGC feature at the Chromium level since the toggle button apparently doesn't suffice.



    ------------------------------
    Brian Dupuis
    Genesys - Employees - Sr. Director, PureCloud UI
    ------------------------------

    Original Message


  • 3.  RE: Disabling Automatic Mic Gain Control

    Posted 40 minutes ago

    Thanks, Brian. Yes, I am using 2.48.900 in my testing.  Based on your answer, it sounds like I can be confident that disabling it via registry will disable it regardless of the toggle appearance. Yes?
    In our environment in particular, the automatic gain control causes more problems than it solves, so I am very happy that we have a way to disable it now.



    ------------------------------
    John Wooten
    ------------------------------

    Original Message


  • 4.  RE: Disabling Automatic Mic Gain Control

    Posted 36 minutes ago

    > Based on your answer, it sounds like I can be confident that disabling it via registry will disable it regardless of the toggle appearance. Yes?

    Correct! I hope your experience is improved.



    ------------------------------
    Brian Dupuis
    Genesys - Employees - Sr. Director, PureCloud UI
    ------------------------------

    Original Message


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