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Troubleshooting Pops, Clicks, & Beeps on Apollo Twin USB

Experiencing clicks, pops, or beeps in audio playback on your Apollo Twin USB? Follow the steps below to configure your Windows system and optimize your settings for better performance:

  1. Configure Windows

    First, configure your Windows system for use with your Apollo Twin USB by following the directions in the two articles below:

    Windows Setup - Required Settings
    Windows Optimization - Optional Settings

    For a video explaining these steps, click here

  2. Update Your Computer's USB 3 Chipset Driver

    If using Windows 7, make sure to update your motherboard's USB 3 chipset driver by following the directions in this article

  3. Disable Core Parking & CPU Throttling

    Intel processors feature CPU power management abilities that dynamically change clock speeds and sleep states. These changes can adversely affect real-time audio. If you are experiencing pops, clicks, or beeps then we recommend that you disable these features.
    Most systems will allow you to turn off or adjust these CPU power management features in the BIOS / UEFI. Please consult your motherboard or system manual for help with making any changes in your BIOS / UEFI.
    By disabling the following features your system will run at a constant clock speed and will not halt individual cores, which can result in better audio performance:

    • Intel SpeedStep (or EIST)

    • Intel Turbo Boost (or Turbo Mode)

    • C-State Control (or C1E, C3, C6, C7)

  4. Raise the USB Safety Buffer

    Raising the USB Safety Buffer in Console can help alleviate issues with audio playback. For details, see this article.


If the problem persists, please generate a Windows system information file and contact Customer Support by submitting a new support request. Follow the directions below to generate a Windows system information file:

  1. Go To: Start -> Search
  2. Type "msinfo32" and press enter
  3. Go To: File -> Save to save the file. 

Please attach this '.nfo' file when you submit your support request.

To submit a new support request, click here


Have more questions? Submit a request