Make sure to repeat this process for each USB Root hub in the Device Manager.Uncheck the option for "Allow the computer to turn off this device to save power".Find “USB Root Hub” and right-click on it.In the Device Manager, go to “Universal Serial Bus Controllers”.Open the Start menu and type in “Device Manager”.Try making the following changes:Ĭhange USB Root Hub Power Management settings: There are a number of settings in Windows that can have an impact on USB audio performance. We recommend a USB cable no more than six feet in length. It’s possible that inexpensive alternatives and cables that are too long can introduce problems. Use the included USB cable or a high quality third-party cable.Be sure to try all USB ports on the computer. If you are using a powered hub and you’re still seeing issues, try disconnecting other USB devices or connect the M Series interface directly to a USB port on the computer. If you are using a USB hub, please make sure it is externally powered.
Setting the Buffer Size to 256 or 512 is a good place to start with most systems. Depending on which product you’re using, you can raise or lower the number of samples per buffer in the M Series Control Panel app, MOTU Pro Audio Control’s Device Page or the MOTU Audio Console.
Lower Buffer Sizes can reduce latency, however, too low of a Buffer Size can introduce performance issues. Using too small of a Buffer Size can introduce clicks, dropouts and glitches during playback. Increase the number of samples per buffer (Buffer Size).If you are running into issues with USB audio playback on your PC, it’s possible that you will see improved performance by taking the following steps to optimize your system:
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