The following article addresses general noise issues when using the Rubix24 with a computer:
- First, follow the troubleshooting info in the following article--as noise issues are often a result of grounding problems:
https://cdn.roland.com/assets/media/pdf/Resolving_Grounding_Problems.pdf -
For troubleshooting purposes, disconnect all USB devices except the mouse and the Rubix24—this includes disconnecting the computer keyboard, printer (if applicable), USB hub and/or USB breakout box, etc). If the noise disappears, troubleshoot the device introducing the noise.
2. Physically disconnect any cables connected to any inputs or outputs of the Rubix24 and troubleshoot with headphones--this means that a USB cable and headphones are the only cables physically connected to the Rubix24.
NOTE: Be sure that speakers are not connected to the Rubix24 and the speakers are not plugged into any power outlets for this troubleshooting.
a. If the problem disappears, the noise is being introduced from one of the audio cables or the speakers themselves. Start reconnecting cables, one by one, until the noise is reintroduced. -
Be sure that you are using balanced cables connected from the Rubix24's outputs into your speakers. If the noise still continues, try using ground lifts on your speakers (if you have these available) as you may have a grounding issue.
If the problem continues, leave all cables physically disconnected from the Rubix24, except for the USB and headphones, and continue the troubleshooting: -
Try connecting the Rubix24 directly to each USB port on your computer (do not use a USB hub or USB breakout box for this test)—to rule out one or more USB ports causing the problem.
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Move the Rubix24 away from your computer video monitor—as the video monitor may be introducing this noise.
- Move the Rubix24 away from the computer itself--as the computer's power supply could be introducing this noise.
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Disconnect the Rubix24 and test with the computer’s internal soundcard. If the noise problem continues, the Rubix24 is not the cause of the problem.
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Connect the computer’s power, and the computer video monitor’s power to a different power circuit. The noise may be a result of dirty power or another issue from the original power circuit. Be sure that your computer's power, your computer's video monitor's power, the Rubix24's power and your speakers power are all connected to the same outlet--on the same circuit.
- Test with a different USB audio interface (if available) to determine if the issue is isolated to the Rubix24 or with any USB audio interface.
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Test on a different computer to determine if there is an issue with the Rubix24 that continues on a different computer system.